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Post by swamprat on Aug 4, 2011 7:10:34 GMT -6
FOR IMMEDIATE RELEASE
ACS News Service Weekly PressPac: August 3, 2011
First opal-like crystals discovered in meteorite
“Magnetite 3D Colloidal Crystals Formed in the Early Solar System 4.6 Billion Years Ago”
Journal of the American Chemical SocietyScientists have found opal-like crystals in the Tagish Lake meteorite, which fell to Earth in Canada in 2000. This is the first extraterrestrial discovery of these unusual crystals, which may have formed in the primordial cloud of dust that produced the sun and planets of our solar system 4.6 billion years ago, according to a report in the Journal of the American Chemical Society. Katsuo Tsukamoto and colleagues say that colloidal crystals such as opals, which form as an orderly array of particles, are of great interest to for their potential use in new electronics and optical devices. Surprisingly, the crystals in the meteorite are composed of magnetite, which scientists thought could not assemble into such a crystal because magnetic attractions might pack the atoms together too tightly. “We believe that, if synthesized, magnetite colloidal crystals have promising potential as a novel functional material,” the article notes. The formation of colloidal crystals in the meteorite implies that several conditions must have existed when they formed. “First, a certain amount of solution water must have been present in the meteorite to disperse the colloidal particles,” the report explains. “The solution water must have been confined in small voids, in which colloidal crystallization takes place. These conditions, along with evidence from similar meteorites, suggest that the crystals may have formed 4.6 billion years ago.” portal.acs.org/portal/acs/corg/content?_nfpb=true&_pageLabel=PP_ARTICLEMAIN&node_id=223&content_id=CNBP_027957&use_sec=true&sec_url_var=region1&__uuid=da43331d-6a5a-4c54-b6de-7bad4900a204
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Post by skywalker on Aug 4, 2011 21:27:53 GMT -6
Since the article said that moisture had to be present for the crystals to form I wonder if the meteorite could have come from a planet that had water on it? Am asteroid could have plowed into it and blasted chunks of it out into space along with some of the water from the planet's ocean. It could happen...
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Post by lois on Aug 4, 2011 22:13:22 GMT -6
Hey Paul!!, nice photo of yourself Oops was I suppose to tell? ;D Hard telling what you could find in a meteorite.. Maybe anything.. I know I go out soon for the big shower coming up next week. Thats how I got my close encounter watching for these rocks to fall. very interesting thread.
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Post by auntym on Aug 8, 2011 18:44:14 GMT -6
www.space.com/12569-meteorites-dna-building-blocks-discovery.html Building Blocks of DNA Found in Meteorites from SpaceCharles Q. Choi, SPACE.com Contributor Date: 08 August 2011 Meteorites contain a large variety of nucleobases, an essential building block of DNA. CREDIT: NASA's Goddard Space Flight Center/Chris Smith The components of DNA have now been confirmed to exist in extraterrestrial meteorites, researchers announced. A different team of scientists also discovered a number of molecules linked with a vital ancient biological process, adding weight to the idea that the earliest forms of life on Earth may have been made up in part from materials delivered to Earth the planet by from space. Past research had revealed a range of building blocks of life in meteorites, such as the amino acids that make up proteins. Space rocks just like these may have been a vital source of the organic compounds that gave rise to life on Earth. Investigators have also found nucleobases, key ingredients of DNA, in meteorites before. However, it has been very difficult to prove that these molecules are not contamination from sources on Earth. [5 Bold Claims of Alien Life] "People have been finding nucleobases in meteorites for about 50 years now, and have been trying to figure out if they are of biological origin or not," study co-author Jim Cleaves, a chemist at the Carnegie Institution of Washington, told SPACE.com. To help confirm if any nucleobases seen in meteoriteswere of extraterrestrial origin, scientists used the latest scientific analysis techniques on samples from a dozen meteorites — 11 organic-rich meteorites called carbonaceous chondrites and one ureilite, a very rare type of meteorite with a different chemical composition. This was the first time all but two of these meteorites had been analyzed for nucleobases. The analytical techniques probed the mass and other features of the molecules to identify the presence of extraterrestrial nucleobases and see that they apparently did not come from the surrounding area. Two of the carbonaceous chondrites contained a diverse array of nucleobases and structurally similar compounds known as nucleobase analogs. Intriguingly, three of these nucleobase analogs are very rare in Earth biology, and were not found in soil and ice samples from the areas near where the meteorites were collected at the parts-per-billion limits of their detection techniques. "Finding nucleobase compounds not typically found in Earth's biochemistry strongly supports an extraterrestrial origin," Cleaves said. CONTINUE READING: www.space.com/12569-meteorites-dna-building-blocks-discovery.html
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Post by Deleted on Aug 9, 2011 10:16:19 GMT -6
Interesting article, thanks Swampy
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Post by swamprat on Aug 9, 2011 15:55:47 GMT -6
Mis-post
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Post by auntym on Aug 11, 2011 10:14:00 GMT -6
www.time.com/time/health/article/0,8599,2087758,00.html#0_undefined,0_ Space DNA in Space? Biological Building Blocks Found in Meteorites By Michael D. Lemonick Thursday, Aug. 11, 2011 Meteorites contain a large variety of nucleobases, an essential building block of DNA. Chris Smith / NASA's Goddard Space Flight Center Scientists have been finding evidence of life inside meteorites for well over 100 years — that, or the building blocks of life. The claims of life have been debunked every time, most recently just this past March. It always turns out to be a wishful interpretation of chemicals, minerals and tiny structures inside the meteorite that could be the fossilized husks of long-dead bacteria, but almost certainly aren't. The building blocks, though, have proven a lot more convincing. As far back as the 1960's, it was clear that amino acids, which link up to form proteins, can and do form in space. And now, scientists at NASA's Goddard Space Flight Center in Greenbelt, Maryland, are claiming that another set of molecules crucial to life have also rained down on Earth: adenine and guanine, two of the four so-called nucleobases that, along with cytosine and thymine, form the rungs of DNA's ladder-like structure. (See pictures of meteors that fell from the sky.) By itself, that wouldn't mean much, says Michael Callahan, lead author of a new paper in Proceedings of the National Academy of Sciences. "People have been finding nucleobases in meteorites since the late 1960's," he says. But they've always been among the handful of nucleobases common to organisms on Earth, so contamination on the ground after the meteorite landed has been the most likely explanation. "When I picked up on this research," says Callahan, a chemist with Goddard's Astrobiology Analytical Laboratory, "I was convinced that it was all contamination." But once he and his collaborators got hold of samples of 12 meteorites that had landed mostly in Antarctica and ran them through the lab's liquid chromatograph and mass spectrometer, they discovered all sorts of other molecules — related substances that were similar in structure but not biologically useful. That was a surprise; if a meteorite picked up its biological traces on the ground, the adenine and guanine would have been accompanied by other, equally familiar molecules — not these substances that were not quite nucleobases but not quite not either. (See TIME's photo-essay "The Hubble Telescope's Greatest Hits.") CONTINUE READING: www.time.com/time/health/article/0,8599,2087758,00.html#ixzz1Ujm9NfMw
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Post by swamprat on Aug 13, 2011 10:48:54 GMT -6
The DNA in the meteorite thing even hit the Christian Science Monitor..... The CHRISTIAN SCIENCE Monitor
Are we all extraterrestrials? Scientists discover traces of DNA in space. Fully-formed building blocks of DNA have been found in meteorites, suggesting an extraterrestrial origin for some of the chemicals deemed necessary for organic life.
By Pete Spotts, Staff writer / August 12, 2011 If you're out watching the Perseid meteor shower tonight, you'll be witnessing a process that scientists have increasingly come to regard as the vehicle for delivering basic building blocks of organic life to Earth. A team of scientists led by NASA's Michael Callahan appears to have added some critical components to the list of space-borne building blocks raining onto Earth's surface: a class of chemicals called nucleobases. Nucleobases combine to carry the genetic information found in DNA molecules, the molecules that orchestrate an organism's form and functions. In results reported this week in the Proceedings of the National Academy of Sciences, the team analyzed the chemical makeup of a dozen carbon-rich meteorites plucked from different locations in Antarctica and Australia. They not only found nucleobases widely found in organisms on Earth, compounds such as adenine and guanine, two of the four bases found in DNA. They also found related compounds, which the team dubbed "nucleobase analogues," that aren't found on Earth and in effect are new to science. Even nucleobases have been detected in meteorites before, notes Dr. Callahan. But scientists have had a hard time convincing themselves and others that the nucleobases came from space. They could represent contamination a space rock picked up after it landed. "We do see biological nucleobases in ice and soil samples" collected from the places where the meteorites were found, he says. "That's only natural." But, he adds, the mix and distribution of the nucleobases typically found in ice and soil are far different that those found in the meteorites the team analyzed. And those new-to-science compounds are definitely not earth contamination. "We don't see any nucleobase analogues whatsoever" in the ice and soil, he says. Many biologically important molecules form from water, hydrogen cyanide, and ammonia – all substances that are abundant in the clouds of dust and gas that collapse to form stars and planets. As an additional test, the team conducted simple experiments in the lab in which they mixed ammonia, hydrogen cyanide, and water and ended up with the same variety of nucleobases and nucleobase analogues they found in meteorites. They concluded that some of the key components of DNA may have been delivered to Earth ready-made by chemical reactions that took place on asteroids or comets as the solar system evolved. And if it can happen in our solar system, Callahan suggests, under the right conditions these building blocks can find their way to hospitable planets elsewhere. www.csmonitor.com/Science/2011/0812/Are-we-all-extraterrestrials-Scientists-discover-traces-of-DNA-in-space.
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Post by swamprat on Aug 18, 2011 13:06:35 GMT -6
Fireball Leads to Midwest Meteorite Alert, NASA WarnsBy Denise Chow Published August 18, 2011 Space.comOhio residents should be on the lookout for potential small meteorites that may have been created by a bright fireball that streaked over southern Ontario, Canada, last week, NASA said. The fireball was detected by all-sky cameras from the Southern Ontario Meteor Network at 1:22 a.m. EDT (0522 GMT) on Aug. 8. "It was picked up over Lake Erie and proceeded south-southeast over Ohio," said Bill Cooke, head of NASA's Meteoroid Environments Office at the Marshall Space Flight Center in Huntsville, Ala. The meteor was last tracked north of Gustavus, Ohio, and the potential impact zone for meteorite fragments is a region east of Cleveland, Cooke told SPACE.com. When would-be meteors are traveling through space, they are known as meteoroids to astronomers. When they enter Earth's atmosphere to create fireballs, they are called meteors. Only fragments that actually reach Earth's surface are called meteorites. "We look for ones that are moving low and slow, ones that penetrate deep into the atmosphere," Cooke said. "Normally meteors burn up 40 to 50 miles (about 65 to 80 kilometers) over your head. This one got down to 38 km (24 miles) before we lost track of it, and we know it went lower." When a meteor penetrates low into the atmosphere and moves relatively slow, it can create meteorites that fall to the ground, Cooke explained. The fireball seen last week slowed to approximately 25,200 mph (40,555 kph). And while skywatchers around the world enjoyed spectacular views of the annual Perseid meteor shower last week, Cooke clarified that this fireball is definitely not a Perseid because it is moving too slowly. Based on the fireball's brightness and radar observations, the meteor's mass is estimated to be in the range of 22 pounds (10 kilograms). This means that meteorite fragments will likely be pretty small, Cooke said. "Something the size of your thumbnail, maybe a bit bigger," he said, estimating that any rocks found would probably be about three ounces (roughly 100 grams) and measure about one to two inches (2.5 to 5 cm) across. For meteorite hunters in the area, or for anyone who fortuitously stumbles across any pieces of space rock, Cooke wants to know about it, and people are encouraged to contact NASA's Meteoroid Environments Office if they find any fragments. But, the meteorite expert cautions that there are strict rules governing the ownership of space rocks that fall from the sky. "One thing you need to know is that meteorites belong to the property holder, the owner of the property on which they land," he said. "So, if you're looking for them on someone's property, be sure you talk to them and get their permission first. If you're looking for meteorites, respect the wishes and rights of all property owners." Copyright © 2011 Space.com. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.Read more: www.foxnews.com/scitech/2011/08/18/fireball-leads-to-midwest-meteorite-alert-nasa-warns/#ixzz1VPKymPZm
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Post by lois on Aug 18, 2011 21:44:57 GMT -6
Ohio is too far from me to watch for any of those fragments. You said meteorites were only the ones that hit the earth. I never knew that. When my Mother live at home with her parents in Leroy, you may know this town.. A meteor was closing in and my Mother and Grandmother was getting worried it was coming at them. My grandfather just laughed and said, that thing is thousands of miles from here and went back inside the house. It got closer and the women ran inside, my Grandfather went back out on the porch as it sailed pass his head by a few ft. lol....
It landed in the backyard. He told everyone not to go out there till morning.. He called the authorities who came out and dug it up. It was still smothering.. They put it in the bank window. I don't know if LeRoy still has ownership of it or not.
My Mother loved telling the story as her father was wrong about this meteor and her Mother and her were right.. What was the chances of it really falling in their yard. Come on now . I would of thought it was a long ways off myself. Of course I cannot see it through their eyes. It may of been on a direct course with them.. who knows. I have always watched meteor showers, but would not want one to hit me head on..
I only seen a few last week as the moon gave too much light.. this fireball was not even part of the Perseid showers.. They do fall all year round ..
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Post by auntym on Jun 16, 2012 11:20:58 GMT -6
FIRE IN THE SKY: Large Bright "Green" Meteor Shoots Across Northern Ohio Skies! JUNE 14, 2012 [/color] IT STARTS ON RIGHT SIDE OF SCREEN... [/size] Published on Jun 15, 2012 by celestialconvergence Did you see it? Lots of folks across northern Ohio did. A meteor streaking across the Ohio skies put on quite a show for a few brief seconds Thursday evening. Reports began coming in just after 10 p.m. on Thursday of a bright object streaking across the sky at about 9:55 p.m. "It was an incredible sight. It came from the south, streaked over head quickly and then within a second disappeared over Lake Erie," Kathy from Willoughby Hills, Ohio said. She described the sight as a bright white ball with a long, green tail. Steven from Wooster, Ohio saw it too. He said he also saw "2 or 3 pieces that came off bottom and were traveling at a slower velocity." The shooting star was observed across portions of Ohio, Southern Ontario, Western Pennsylvania, Ohio & West Virginia. Steven in Toronto, comments, "Never seen anything like it before. There was a main body of white streaking across the sky, (and) smaller objects near it. Just saw a glow over the lake, green blue in colour. (It) looked like a firework at first but we realized it wasn't." said K.J. from Sarnia, Ontario. Margaret from Perry, Ohio exclaims, "I have seen a few fireballs in my life. Never one that was green. So cool. looked like green sparks coming off initial fireball." Fireball faded with no flash. Glowing green and white that faded to white." The sight was also seen in Circleville, near Columbus, Ohio. "It was going horizontal all white, then it exploded in a red- orange It was white glowing trail," said Lloyd Poling. Shooting stars are common around the world as very small pieces of space rock burn up in the Earth's atmosphere. Most of the shooting stars are as small and create a quick, white streak across the night sky. Occasional, larger pieces of space rock, hit our atmosphere and create a show like many saw this night. "Most shooting stars are smaller than a grain of sand," said astronomer Jay Reynolds from Cleveland State University. "This one could have been nickel size, penny size." As for the color of the streak, that depends on the chemical make-up of the rock itself. "The green color of the tail tells you that the space rock was full of iron," said Reynolds. Shooting stars are mainly associated with the Earth's periodic encounters with dust from comet's tails. These meteor showers happen regularly several times per year. The next round is not expected until July 28 and 29, 2012 as part of the Delta Aquarids Meteor Shower. But, occasionally, experts say, a random rock finds its way to Earth. Adds Reynolds, "This was a little chunk of iron hanging out there in space and the earth got in the way."
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Post by auntym on Feb 18, 2013 12:48:16 GMT -6
meteor above Cuba
Published on Feb 16, 2013
météore tombe à Cuba,meteor falls to Cuba,
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Post by auntym on Feb 18, 2013 17:46:27 GMT -6
!
Meteor shower in South Florida? Possible solar show caught on camera
WPTVnews Published on Feb 18, 2013
Meteor shower in South Florida? Possible solar show caught on camera
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Post by lois on Jul 12, 2013 15:07:58 GMT -6
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Post by Deleted on Jul 12, 2013 19:18:40 GMT -6
Are you ready for the Perseids Lois ? I'm going back to the place where I saw that ufo that night about 7 or 8 years ago. The only thing that will stop me will be bad weather (hopefully not). I wont leave this next time around. I'll just stay and watch if another decides to come down out of space and do some cool maneuvers. Does anyone want to go and watch with me ? I'll be going to "Lake Pomme De Terre" at "Bolivar Landing." I'll be bringing the telescope also. It's extremely dark there and a prime spot to watch the shower. Like Skywalker suggested, maybe a fishing pole too perhaps.
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Post by lois on Jul 12, 2013 21:46:56 GMT -6
Are you ready for the Perseids Lois ? I'm going back to the place where I saw that ufo that night about 7 or 8 years ago. The only thing that will stop me will be bad weather (hopefully not). I wont leave this next time around. I'll just stay and watch if another decides to come down out of space and do some cool maneuvers. Does anyone want to go and watch with me ? I'll be going to "Lake Pomme De Terre" at "Bolivar Landing." I'll be bringing the telescope also. It's extremely dark there and a prime spot to watch the shower. Like Skywalker suggested, maybe a fishing pole too perhaps. Cliff. Bad weather . that is what worries me. A front can stationery for weeks in our area. I should think positive. Yes you may see that ufo again . Why do they say August 13 is this year a little different for some reason? They included the 13th I usually stop watching by the 12th. August 10 and 11 are my nights. to see a ufo or object of some kind. Like last year in cape it was earlier. August 4, the night of my granddaughters wedding. I do not know what that stupid object was and the green light right before it that went over the moon. Yes I'm ready but I do not want summer to end yet.. I hate winter. I want to slow July down to a crawl.. Good luck Cliff and hope the skies are clear and bright. Yes I would go with you if I could.
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Post by Deleted on Jul 12, 2013 23:48:15 GMT -6
Yeah, the nights of the 11th, 12th, or 13th will all be good but I'll be watching especially on the night of the 12th. It will be late that night into the early morning hours and the Moon shouldn't be much of a hindrance. The Northeast will be the location to look. It's one of my favorites to watch.
I really don't care if I see a ufo or not but it would not surprise me. I know something is in the area for sure. This area is where left over debris from comet Swift-Tuttle came through. That's what causes the Perseids. There is something else lurking out there. You and I (and Ray) are not the only ones to identify this area with ufo's.
I'm going out right now with the telescope to find comet Lemmon. G'nite
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Post by Deleted on Jul 14, 2013 0:23:10 GMT -6
Would you believe i'm the only one in my family that hasn't visited my brothers place on Pomme de Terre? He has had a weekend/summer home there for about 3 years . My other 3 relatives and their families all moved off the lake some time ago . . . . I'm glad you are going, Cliff. Hopefully by then I'll have started my new job, but I'm thinking about it.
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Post by Deleted on Jul 14, 2013 3:30:03 GMT -6
Would you believe i'm the only one in my family that hasn't visited my brothers place on Pomme de Terre? He has had a weekend/summer home there for about 3 years . My other 3 relatives and their families all moved off the lake some time ago . . . . I'm glad you are going, Cliff. Hopefully by then I'll have started my new job, but I'm thinking about it. Come on down Jc. If anyone else can make it we can have a TEOR star party at the lake.
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Post by Deleted on Jul 14, 2013 3:58:53 GMT -6
Ohio is too far from me to watch for any of those fragments. You said meteorites were only the ones that hit the earth. I never knew that. When my Mother live at home with her parents in Leroy, you may know this town.. A meteor was closing in and my Mother and Grandmother was getting worried it was coming at them. My grandfather just laughed and said, that thing is thousands of miles from here and went back inside the house. It got closer and the women ran inside, my Grandfather went back out on the porch as it sailed pass his head by a few ft. lol.... It landed in the backyard. He told everyone not to go out there till morning.. He called the authorities who came out and dug it up. It was still smothering.. They put it in the bank window. I don't know if LeRoy still has ownership of it or not. My Mother loved telling the story as her father was wrong about this meteor and her Mother and her were right.. What was the chances of it really falling in their yard. Come on now . I would of thought it was a long ways off myself. Of course I cannot see it through their eyes. It may of been on a direct course with them.. who knows. I have always watched meteor showers, but would not want one to hit me head on.. I only seen a few last week as the moon gave too much light.. this fireball was not even part of the Perseid showers.. They do fall all year round .. That is interesting Lois and the odds ? WOW ! Here in my small hometown we have a local museum that has a meteorite which is about 40 pds. I held it in my hands and it is unusual in appearance. It came down years ago and if I recall right , it landed near an ole' boys tractor.
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Post by skywalker on Jul 14, 2013 8:12:41 GMT -6
Why won't the darned things ever land near my tractor? I have my catcher's mitt all ready but there's nothing to catch.
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Post by auntym on Feb 24, 2014 13:18:34 GMT -6
www.space.com/24789-moon-meteorite-impact-brightest-lunar-explosion.html?cmpid=514648_20140224_19049074 Record-Breaking Meteorite Crash on Moon Sparks Brightest Lunar Explosion Ever BAM! 38,000 MPH Space Rock Slams Into Moon | VideoAn estimated 4 foot-wide, 880 lbs asteroid hit the moon on September 11th, 2013. It had explosive force of 15 tons of TNT. Spanish telescopes that are part of Moon Impacts Detection and Analysis... By Megan Gannon, News Editor February 24, 2014 The high-speed impact of a wayward space rock on the surface of the moon last year triggered the brightest lunar explosion ever seen, scientists say. Video footage of the record-breaking meteorite strike on the moon, which occurred on Sept. 11, 2013 and was unveiled today (Feb. 24), shows a long flash that was almost as bright as the North Star Polaris. That means the boulder-sized meteorite's lunar crash could have been visible to anyone on Earth who happened to be staring up at the moon at 8:07 p.m. GMT, weather permitting. "At that moment I realized that I had seen a very rare and extraordinary event," Jose Madiedo, a professor at the University of Huelva, said in a statement. Madiedo witnessed the collision using two moon-watching telescopes in the south of Spain that are part of the Moon Impacts Detection and Analysis System, or MIDAS observatory. [The Greatest Moon Crashes of All Time] WATCH VIDEO: www.space.com/24789-moon-meteorite-impact-brightest-lunar-explosion.html?cmpid=514648_20140224_19049074
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Post by auntym on Apr 10, 2014 12:29:15 GMT -6
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Post by auntym on Apr 11, 2014 11:57:04 GMT -6
news.discovery.com/adventure/extreme-sports/mysterious-object-in-skydiving-video-identified-140410.htm#mkcpgn=rssnws1 Mysterious Object in Skydiving Video IdentifiedApr 10, 2014 by Benjamin Radford A viral video (see below) claiming to show a meteoroid flying past a skydiver during a jump in June 2012 has garnered huge hits over the past week, fueling theories ranging from UFOs to meteors — which would be possible but very rare. The would-be, soon-to-be meteorite (it’s not technically a meteorite until it hits the ground) was captured by a helmet camera on a Norwegian skydiver. Steinar Midtskogen, who was part of the team, posted a blog about the mystery: norskmeteornettverk.no/wordpress/?p=1497“On 17th June 2012 Anders Helstrup was skydiving using his wingsuit. In one of the jumps something very unexpected happened, and his two helmet mounted camera confirmed it: A rock fell from the sky, just past Anders towards the ground. There was no one or nothing above him that could have dropped it. He contacted some geologists and meteorite experts, and an investigation was under way. The videos were analyzed and the area was searched, but the only conclusive proof for a meteorite, the meteorite itself, was not found.” It remained a mystery until the group decided to seek some crowdsourced knowledge, and posted the video to YouTube. Some immediately suspected a hoax, and wondered why a strange video taken nearly two years earlier had only recently come to light. Others noted that if it was a hoax, using either small rocks or a computer-generated image, it seemed like an awful lot of effort for an otherwise rather mundane video. After all, the “meteoroid” didn’t strike the skydiver or do anything dramatic; it simply happened to fall nearby. Others claimed that it must have fallen from above the parachute (and therefore not with the parachute) because it can been seen when Helstrup’s helmet camera looks up. What’s above the parachutist? Nothing but blue sky — and above that, space. The rock could not have come from the plane, which by that point was far below the skydivers and soon to land. Nor could the rock have come from another skydiver, since there was no one above him. The only other apparent possibilities included a meteoroid (which would be an incredibly unlikely event) or a small stone that had somehow been packed, unnoticed, in Helstrup’s parachute. But that still didn’t explain why the stone would be above Helstrup instead of alongside him or below him. Slate columnist Phil “The Bad Astronomer” Plait examined the video and concluded that the skydiver survived a close call, almost having been hit by what may have been a meteoroid: “My default response is of course extreme skepticism; video hoaxes seem to outnumber real ones 10 to one. But my conclusion here is that unless this was faked outright — and there may simply be no way to ever know that — then this does show what appears to be a rock falling, and that means it may be a meteorite. It certainly looks that way!” Upon further review of the evidence, Plait later changed his mind — not about the mystery object being a rock — but instead about the rock’s origin: he concluded that it was terrestrial, not extraterrestrial after all. CONTINUE READING: news.discovery.com/adventure/extreme-sports/mysterious-object-in-skydiving-video-identified-140410.htm#mkcpgn=rssnws1STORY ON SKYDIVER & METEOR: www.5by.com/yeah-science/posts/5cu/what-are-the-odds-a-meteorite-will-hit-you VIDEO Published on Apr 3, 2014 At 02:51 Jon Vegar (flying towards Anders) is visible in the distance on the left side of the screen before the meteorite passes Anders. A few seconds later Jon Vegar makes a «flyby» at some 20 meter distance. © 2014 Project Dark Flight.
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Post by auntym on Apr 21, 2014 11:30:28 GMT -6
www.aol.com/article/2014/04/21/suspected-meteor-lights-up-night-sky-in-murmansk/20872609/?icid=maing-grid7SECOND METEOR HITS RUSSIASuspected meteor lights up night sky in Murmansk, Russia April, 19, 2014Apr 21st 2014 One motorist captured the spectacular scene that unfolded at about 2 a.m. with his dashcam. Though some are skeptical of the video, RT points out that multiple drivers also captured the bright burst in the sky. According to the YouTube post, people saw a "bright flash. Many eyewitnesses described it as a bright electrical discharge. However, no explosions were heard." The Huffington Post notes that it's been a bit over a year since a meteor exploded over a Russian city and hurt over 1,000 people. RT reports that nobody was injured this time around, and emergency workers weren't even called about the event. Officials have yet to comment. www.aol.com/article/2014/04/21/suspected-meteor-lights-up-night-sky-in-murmansk/20872609/?icid=maing-grid7 Published on Apr 19, 2014 russian meteorite 2014 russian meteor 2014 russian meteorite explosion russian meteor 2014 Meteorite Russia 2014 Meteorite Russia 2014 Video Meteorite caught on tape 2014 Russia Meteor 2014 Russian meteor explosion UFO russian meteor dash cam
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Post by Deleted on Apr 21, 2014 14:20:48 GMT -6
Nice bolide !
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Post by auntym on Apr 21, 2014 14:40:09 GMT -6
Nice bolide ! Déjà Vu: Bright Fireball Explodes Over Russia (Video)By Mike Wall, Senior Writer April 21, 2014 A suspected meteorite explosion recorded over the northern Russian city of Murmansk on April 19, 2014 (local time). Credit: @russiatoday (via youtube.com) MORE: www.space.com/25576-russia-meteor-murmansk-video.html?cmpid=514648
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Post by auntym on May 5, 2014 15:07:27 GMT -6
news.nationalpost.com/2014/05/04/meteor-sighting-videos-show-moment-bright-light-streaked-across-sky-over-southern-ontario/ Toronto meteor sends shockwave over southern Ontario amid speculation meteorites reached the groundCanadian Press May 4, 2014 Dozens of residents in southern Ontario thought they saw a meteor streak across the sky Sunday afternoon, and an expert said there is little doubt that is what they spotted. “There are dash-cam videos I’ve seen already posted to the internet that…clearly show what I would say is unequivocally a meteor,” said Peter Brown, a professor at the University of Western Ontario who studies meteors and meteorites. Many Ontarians took to social media or contacted the American Meteor Society to report either a flash of light or a loud rumble. The reports came in from various southern Ontario communities and parts of the United States. The meteor society posted a comment from a person who said he was from Toronto and described a bright flash. “It was as fast as a shooting star,” said the poster who identified himself as “Doug C.” “It was as bright if not brighter than a lightning bolt.” Dana Petrillo, of Cobourg, Ont., tweeted that her house vibrated and that she first thought there had been an earthquake or explosion. “It was a really low rumble that just reverberated through the walls. It really wasn’t a shaking, like in an earthquake, but more like a wave. It really did feel like an explosion,” she said in an email. Most of the equipment the university has to track meteors was not in operation Sunday afternoon, but a series of microphones the university has in place did detect a shockwave, Brown said. Based on the data and the eyewitness reports it appears the shockwave occurred in the area of Peterborough, Ont., and its characteristics allowed for an estimate of the size of the meteor, said Brown. MORE VIDEOS MORE PHOTOS & CONTINUE READING: news.nationalpost.com/2014/05/04/meteor-sighting-videos-show-moment-bright-light-streaked-across-sky-over-southern-ontario/
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Post by auntym on May 5, 2014 15:40:31 GMT -6
www.space.com/18507-meteor-showers-shooting-stars-infographic.html?cmpid=514648_20140505_23252454How Meteor Showers Work (Infographic)by Karl Tate, SPACE.com Infographics Artist November 16, 2012 Meteors can appear both day and night, but the daytime ones are harder to see unless they are exceptionally bright. The “meteor” itself is the trail of incandescent air caused by a piece of space debris streaking through the atmosphere. Any piece of rocky or iron debris flying through space is a meteoroid (larger ones can be called asteroids). These can range in size from a grain of sand to a boulder. If a meteoroid enters Earth’s atmosphere, it compresses and heats the air as it streaks across the sky, creating a glowing path called a meteor. The heat of air friction melts the meteoroid. Any portion that survives to reach the ground is called a meteorite. Meteor showers are often connected to comets. A comet is a solid body, or nucleus, composed of ice, rock, dust and frozen gases. When a comet approaches the sun, glowing tails of vapor may appear as the nucleus heats up. Comets may leave a trail of debris as they fracture and disintegrate. If the Earth orbits through the debris trail of a comet, a meteor shower results as the particles enter our atmosphere. [Amazing Perseid Meteor Shower Photos] www.space.com/17062-perseid-meteor-shower-2012-photos.htmlHere are some annual meteor showers and the parent bodies that they are associated with: CONTINUE READING: www.space.com/18507-meteor-showers-shooting-stars-infographic.html?cmpid=514648_20140505_23252454
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Post by auntym on May 15, 2014 13:40:33 GMT -6
www.space.com/25836-new-meteor-shower-comet-209p-linear.html?cmpid=514630_20140512_23730024 Camelopardalid Meteor Shower/ New Meteor Shower from Comet Could Dazzle Stargazers Next WeekBy Nola Taylor Redd, Space.com Contributor May 12, 2014 A new meteor shower spawned by a comet is due to light up the sky next week, with some forecasters predicting up to 200 "shooting stars" per hour — a potentially spectacular opening act for the meteor display. If it performs as expected, the never-before-seen Camelopardalid meteor shower is due to peak overnight on May 23 and 24 as the Earth passes through a debris stream left by the Comet 209P/LINEAR nearly 200 years ago. The new meteor display could rival the brilliance of the annual Perseid meteor shower that graces the night sky each August. www.space.com/25768-new-meteor-shower-comet-linear.htmlThe prospect of a brand-new meteor shower has scientists understandably excited. "There could be a new meteor shower, and I want to see it with my own eyes," said NASA meteor expert Bill Cooke, head of the Meteoroid Environment Office at the Marshall Space Flight Center in Huntsville, Ala., in a statement. [New Meteor Shower from Comet 209P/LINEAR (Gallery)] www.space.com/25769-meteor-shower-comet-209p-linear-gallery.html 200-year-old comet leftoversMeteor showers occur when the Earth passes through clouds of dust and gas left behind from comets as the planet orbits the sun. This gas and dust falls into Earth's atmosphere, where it burns up on its downward journey creating a meteor display. The amount of debris in space determines how much of a show the shower will present to observers. In February 2004, the Lincoln Near-Earth Asteroid Research (LINEAR) team discovered Comet 209P/LINEAR. The relatively dim comet crosses Earth's orbit once every five years in its journey around the sun. www.space.com/18149-new-meteor-shower-2014-meteor-storm.htmlTwo years ago, in 2012 meteor experts Esko Lyytinen of Finland and Peter Jenniskens at NASA Ames Research Center determined that Earth would pass through debris from the comet this year. Material shed from the comet in the 1800s would encounter Earth on May 24, 2014. WATCH VIDEO& CONTINUE READING: www.space.com/25836-new-meteor-shower-comet-209p-linear.html?cmpid=514630_20140512_23730024
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