+++Brilliant meteor seen over parts of... Europe w/video
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+++Brilliant meteor seen over parts of Europe tonight+++ Did you see it? A brilliant meteor was reported in the skies over Hungary, Slovenia, Austria,...
Fireball events recorded by the SMART Project
SAO/NASA ADS Title: Fireball events recorded by the SMART Project. Authors: José María Madiedo. Affiliation: AA(Universidad de Huelva, Facultad de Ciencias Experimentales. ) Publication: eMeteorNews, eZine, ISSN 2570-4745 Online publication http://meteornews.org, vol. 3, no. 1, p. 47-48.
Glass 'Bread Crumbs' Could Lead the Way to Missing Crater
Live Science
A spattering of miniscule glass "beads" found in the mountains of Antarctica may lead the way to an 800,000-year-old meteor impact crater. The tiny spheres, known as microtektites, are each no wider than a human hair. They were sprayed into the atmosphere by a 12-mile-wide (20 kilometers) meteor ...
When can you see the Lyrid meteor shower and where is the best place to see this astronomical ...
Hertfordshire Mercury
Skywatchers and meteor shower lovers are set for another fantastic display this month as the Lyrids are set to appearing in the sky. This astronomical event ... As the bits of debris from the comet crash through the Earth's upper atmosphere they vaporise, turning into the colourful meteor shower. The Lyrid ...
Imagine We Have A Meteor Entering The Atmosphere...
Chegg
Answer to . Imagine we have a meteor entering the atmosphere at 30 km/s (a) Let's model the Earth's atmospheric density as an expo...
2018 The FIFTH Year of "CERTAIN Uncertainty" ™ / Meteors, Asteroids, Comets, and MORE!!
Showing posts with label Antarctica. Show all posts
Showing posts with label Antarctica. Show all posts
09 April 2018
The Latest Worldwide Meteor/Meteorite News 09APR2018
Posted by
Lunar Meteorite * Hunter
at
12:00 am
Labels:
Antarctica,
Central Europe meteor 08APR2018,
Indochinites,
microtektites,
TEKTITES
09 December 2014
The Latest Worldwide Meteor/Meteorite News 09DEC2014
Daily Mail - 12 hours
Japanese scientists have found 40 fragments from a comet at Tottuki Point, close to the Syowa Research Station in Antarctica. ...
Japanese scientists have found 40 fragments from a comet at Tottuki Point, close to the Syowa Research Station in Antarctica. ...
South China Morning Post (subscription)
Researchers have recreated a split-second impact of a meteor with primordial Earth, and shown how the 3.5-megatonne collision might have ...
Russian scientist spies mountain-sized asteroid heading our way
Yahoo News
A giant meteor exploded over a Russian city in 2013. ... explosion 1,000 times greater than the surprise 2013 impact of a bus-sizedmeteor in Russia.
Did a massive asteroid impact spark life on Earth?
Los Angeles Times
Researchers have recreated a split-second impact of a meteor with primoridal Earth, and shown how the 3.5-megaton collision might have ...
UK Fireball Meteor 05DEC2014
Latest Worldwide Meteor/Meteorite News
"click image" UK Fireball Meteor 1735 UT 05DEC2014 Image Credit- UK Meteor Network. 2014 The Year of "CERTAIN Uncertainty" ™; Meteors, ...
Portugal Fireball Meteor 06DEC2014
Latest Worldwide Meteor/Meteorite News
"click image" Portugal Fireball Meteor 0552 GMT 06DEC2014 APAA Associação Portuguesa de Astrónomos Amadores ...
370-Meter-Wide Asteroid Could Hit Earth, Russian Scientists Warn
Science 2.0 (blog)
Lipunov believes that 2014 UR116 could hit Earth with an explosion 1,000 times greater than the surprise 2013 impact of a bus-sizedmeteor over .
Formation of life's building blocks recreated in lab
New Scientist - 4 hours
Recreating a meteorite impact with a laser has demonstrated directly how the building blocks of the genetic code could have formed on our ...
Mysterious Mars Lava Formation Looks Like a Cookie
Recreating a meteorite impact with a laser has demonstrated directly how the building blocks of the genetic code could have formed on our ...
Mysterious Mars Lava Formation Looks Like a Cookie
Discovery News - 5 hours
The Martian landscape is peppered in features that look very alien and often cannot be easily explained.
Meteor sighting over Norfolk
The Martian landscape is peppered in features that look very alien and often cannot be easily explained.
Meteor sighting over Norfolk
Norwich Evening News
A large meteor streaks across the sky during the annual Geminidmeteor shower in America. The same shower is believed to have swept across ...
Massive asteroid could intersect Earth's orbit, Russian scientist warns
Alaska Dispatch
Since the Chelyabinsk meteor, which came as a complete surprise to experts, scientists have been warning about the danger and trying to pool their ...
What time can you see the Geminids meteor shower? 7 things to know
Essex Chronicle
The constellation Gemini rises just after sunset on December 13 and it sets just before sunrise on Sunday (December 14) so the meteor shower ...
Geminids meteor shower: how to photograph the UK's shooting stars
The Independent
The Geminids meteor shower began passing overhead last weekend, and will continue until the end of the next one. It's the most spectacular and busy ...
19 reports
American Meteor Society
AMS received 19 reports about a fireball seen over DE, MD, NY, PA and VA on December 7th 2014 around 23:56 (UTC)
Geminids 2014: Everything you need to know about 'most intense' meteor shower of the year
International Business Times UK
The Geminid meteor shower 2014 will peak on 13 and 14 December, with up to 100 shooting stars expected per hour. The Geminids is one of the ...
2014 The Year of "CERTAIN Uncertainty" ™; Meteors, Asteroids, Comets, and MORE!!
A large meteor streaks across the sky during the annual Geminidmeteor shower in America. The same shower is believed to have swept across ...
Massive asteroid could intersect Earth's orbit, Russian scientist warns
Alaska Dispatch
Since the Chelyabinsk meteor, which came as a complete surprise to experts, scientists have been warning about the danger and trying to pool their ...
What time can you see the Geminids meteor shower? 7 things to know
Essex Chronicle
The constellation Gemini rises just after sunset on December 13 and it sets just before sunrise on Sunday (December 14) so the meteor shower ...
Geminids meteor shower: how to photograph the UK's shooting stars
The Independent
The Geminids meteor shower began passing overhead last weekend, and will continue until the end of the next one. It's the most spectacular and busy ...
19 reports
American Meteor Society
AMS received 19 reports about a fireball seen over DE, MD, NY, PA and VA on December 7th 2014 around 23:56 (UTC)
Geminids 2014: Everything you need to know about 'most intense' meteor shower of the year
International Business Times UK
The Geminid meteor shower 2014 will peak on 13 and 14 December, with up to 100 shooting stars expected per hour. The Geminids is one of the ...
2014 The Year of "CERTAIN Uncertainty" ™; Meteors, Asteroids, Comets, and MORE!!
Posted by
Lunar Meteorite * Hunter
at
9:03 pm
Labels:
Antarctica,
Japanese Antarctic Meteorite Research Team 2014,
Syowa Research Station,
Tottuki Point
27 February 2014
The Latest Worldwide Meteor/Meteorite News 27FEB2014
Announcement from Planetary Science Research Discoveries [PSRD]New CosmoSparks Report:
ANSMET 2013-2014 Field Season in the Miller Range, Antarctica: 333 meteorites collected for
scientific study. ...
Accidents and Asteroids - How Real is the Threat of an Asteroid Hitting Earth ESA Euronews
Posted to YouTube by nemesis maturity 557 views
Meteor Shower Dates for 2014
Select meteor showers are listed below in chronological order of their annual peak. We hope you enjoy the site. http://www.fallofathousandsuns.com/meteor-showers.html
Japan Fireball Meteor 26FEB2014 - Latest Worldwide Meteor/Meteorite News - Blogger
blogspot.com
Japan Fireball Meteor 26FEB2014 - 2014年2月26日 2時24分0秒 長野方面の火球 ... SonotaCo MeteorForum with more photos and videos-
Meteorite May Harbor Evidence of Mars Life: StudySPACE.com - 22 hours
A team of scientists says that microscopic tunnels and carbon-rich spherules that stud the interior of a Martian meteorite known as Yamato ...
Why Gravity loses its pull
ANSMET 2013-2014 Field Season in the Miller Range, Antarctica: 333 meteorites collected for
scientific study. ...
Accidents and Asteroids - How Real is the Threat of an Asteroid Hitting Earth ESA Euronews
Posted to YouTube by nemesis maturity 557 views
Meteor Shower Dates for 2014
Select meteor showers are listed below in chronological order of their annual peak. We hope you enjoy the site. http://www.fallofathousandsuns.com/meteor-showers.html
Japan Fireball Meteor 26FEB2014 - Latest Worldwide Meteor/Meteorite News - Blogger
blogspot.com
Japan Fireball Meteor 26FEB2014 - 2014年2月26日 2時24分0秒 長野方面の火球 ... SonotaCo MeteorForum with more photos and videos-
Meteorite May Harbor Evidence of Mars Life: StudySPACE.com - 22 hours
A team of scientists says that microscopic tunnels and carbon-rich spherules that stud the interior of a Martian meteorite known as Yamato ...
Why Gravity loses its pull
Sydney Morning Herald
''Rather than debris from the satellite, there's more potential danger from a meteor; and though more plausible, a meteor is still a highly unlikely ...
Meteorite Fragments from Russian Fireball on Display 1 Year After Space Rock Explosion
Space.com
The explosion of a meteor over the southern Ural region of Russia last year peppered the area with varying sizes of space rock leftovers. That stunning ...
Latest Worldwide Meteor/Meteorite News: The Latest WorldwideMeteor/Meteorite News 25FEB2014
blogspot.com
Initial Meteor Sighting Reports- 23FEB2014 kt pankow castile, new york, usa 21:13 ESTpm 2 sec dropped straight down. facing northeast white, blue ....
Meteorite Fragments from Russian Fireball on Display 1 Year After Space Rock Explosion
Space.com
The explosion of a meteor over the southern Ural region of Russia last year peppered the area with varying sizes of space rock leftovers. That stunning ...
Chance of koala being hit by bullet less than being hit bymeteorite
Brisbane Times
"The chance of a koala being hit by a stray shot - remembering it is a big area - is not as great as a koala being hit by a meteorite," Mr Jones said.
2014 The Year of "CERTAIN Uncertainty" ™; Meteors, Asteroids, Comets, and MORE!!
''Rather than debris from the satellite, there's more potential danger from a meteor; and though more plausible, a meteor is still a highly unlikely ...
Meteorite Fragments from Russian Fireball on Display 1 Year After Space Rock Explosion
Space.com
The explosion of a meteor over the southern Ural region of Russia last year peppered the area with varying sizes of space rock leftovers. That stunning ...
Latest Worldwide Meteor/Meteorite News: The Latest WorldwideMeteor/Meteorite News 25FEB2014
blogspot.com
Initial Meteor Sighting Reports- 23FEB2014 kt pankow castile, new york, usa 21:13 ESTpm 2 sec dropped straight down. facing northeast white, blue ....
Meteorite Fragments from Russian Fireball on Display 1 Year After Space Rock Explosion
Space.com
The explosion of a meteor over the southern Ural region of Russia last year peppered the area with varying sizes of space rock leftovers. That stunning ...
Chance of koala being hit by bullet less than being hit bymeteorite
Brisbane Times
"The chance of a koala being hit by a stray shot - remembering it is a big area - is not as great as a koala being hit by a meteorite," Mr Jones said.
2014 The Year of "CERTAIN Uncertainty" ™; Meteors, Asteroids, Comets, and MORE!!
Posted by
Lunar Meteorite * Hunter
at
6:32 am
Labels:
ANSMET 2013-2014 Field Season,
Antarctica,
Asteroid threat,
collected,
ESA,
Meteor Showers 2014,
meteorites,
Miller Range,
scientific study,
Video
05 March 2010
6MAR2010 meteor/meteorite news
100-kilový meteorit pod Tatrami
Fireball across Ireland as meteorite crashes to Earth 3FEB2010
posted on YouTube by NOLINKNEWS March 05, 2010
Space rock plunges through atmosphere and crashes in Ireland
A meteorite traveling with the force of a small nuclear weapon blazed across the sky in Ireland Wednesday and crashed inland.
Astronomy Ireland says the fireball, which was traveling at 100,000 miles per hour, was spotted at about 6 p.m.
The meteorite - which eyewitnesses said was the same size as a small desk - was seen by people up and down the country.
http://www.rte.ie/news/2010/0203/mete...
Ein Meteorit rottete die Dinos aus
Pluska.sk - 19 分前
Kým po meteorite, ktorý preletel pred pár dňami naším územím, niet ani stopy ao jeho dopade sa háda Slovensko s Maďarskom, Friedrich Neuhaus (66) má ...
Fireball across Ireland as meteorite crashes to Earth 3FEB2010
posted on YouTube by NOLINKNEWS March 05, 2010
Space rock plunges through atmosphere and crashes in Ireland
A meteorite traveling with the force of a small nuclear weapon blazed across the sky in Ireland Wednesday and crashed inland.
Astronomy Ireland says the fireball, which was traveling at 100,000 miles per hour, was spotted at about 6 p.m.
The meteorite - which eyewitnesses said was the same size as a small desk - was seen by people up and down the country.
http://www.rte.ie/news/2010/0203/mete...
Ein Meteorit rottete die Dinos aus
Nürnberger Zeitung - 17 分前
Es ist ein Szenario, das man lieber verdrängt: Ein Meteorit von zehn Kilometern Durchmesser rast auf die Erde zu – mit einer Geschwindigkeit von 72.000 ...
Investigating the fireball frenzy in Duluth
New study blames dinosaur deaths on big meteor strike Signs of the ...
Nuremberg, Germany - A new German-led study has marshalled even more powerful evidence that a single meteor strike 65 million years ago led to the sudden ...
Clues to Antarctica space blast
BBC News
The study's authors think these spherules could be material eroded from a stony meteorite as it was heated up on its way through our atmosphere. ...
恐竜絶滅 やはり巨大隕石が原因…東北大など国際研究チームが結論
Vatican astronomer makes God connection
Warren Tribune Chronicle
His research explores connections between meteorites, asteroids and the evolution of small solar system bodies, observing Kuiper Belt comets with the ...
Investigating the fireball frenzy in Duluth
Park Rapids Enterprise - by Bob King 15 分前
The most likely explanation is a brilliant meteor called a fireball. In a lifetime you might see a half-dozen of these spectacular sights, but they occur ...
Het is nu zeker: dino's stierven uit door meteoriet
Spelunking the lunar landscape
Definitivní verdikt vědců: Dinosaury vyhubil meteorit Het is nu zeker: dino's stierven uit door meteoriet
De Standaard - 3 時間前
De theorie over de meteoriet zou nu onweerlegbaar zijn. Uit de gegevens blijkt dat de kracht van de inslag te vergelijken was met die van 5 miljard ...
Spelunking the lunar landscape
Discover Magazine (blog) - 13 分前
The hole may be a collapsed section, or it may have been punched by a larger meteorite. Given the size of the hole, the impactor couldn't have been bigger ...
Confirmado: El asesino fue el meteorito NeoTeo - 16 分前
Un nutrido grupo de científicos ha corroborado la teoría de que el culpable de matar a millones de reptiles prehistóricos fue un enorme meteorito que ...
Aktuálně.cz - 9 分前
O tom, zda způsobil zkázu druhohorních plazů skutečně meteorit, se vedly spory. Podle panelu 41 vědců, který zkoumal práce paleontologů, sedimentologů, ...
New study blames dinosaur deaths on big meteor strike Signs of the ...
Nuremberg, Germany - A new German-led study has marshalled even more powerful evidence that a single meteor strike 65 million years ago led to the sudden ...
Clues to Antarctica space blast
BBC News
The study's authors think these spherules could be material eroded from a stony meteorite as it was heated up on its way through our atmosphere. ...
恐竜絶滅 やはり巨大隕石が原因…東北大など国際研究チームが結論
読売新聞 - 10 時間前
約6550万年前の白亜紀末に恐竜などが大量絶滅したのは、メキシコ・ユカタン半島に巨大な 隕石 ( いんせき ) が衝突したことが原因と結論づける報告を、東北大など12か国の研究機関による研究チームがまとめ、5日の科学誌サイエンスに発表した。これまでも隕石衝突 ...
Vatican astronomer makes God connection
Warren Tribune Chronicle
His research explores connections between meteorites, asteroids and the evolution of small solar system bodies, observing Kuiper Belt comets with the ...
Posted by
Lunar Meteorite * Hunter
at
10:58 pm
Labels:
65 million years ago,
Antarctica,
asteroid impact,
Chicxulub crater,
dinosaur extinction
23 November 2009
Japanese Meteor/Meteorite News- Week Prior+ 23NOV09
9年ぶり隕石採集へ=南極地域観測隊
時事通信 - 2009年11月21日
南極大陸で9年ぶりに隕石(いんせき)採集を行う小島秀康国立極地研究所教授と前回調査時に採集した火星からの隕石。小島教授は「隕石保有数の世界一を取り戻したい」と意気込む(19日、東京都立川市の同研究所) 【時事通信社】
9 years to collect meteorites in Antarctica expedition
Newsletter 2009 - November 21
Iin Antarctica 9 years meteorite (meteorite) were collected during the previous survey and Professor, Institute of Polar Research to collect Kozima Hideyasu meteorite from Mars. Professor Kojima is "regain possession of the world of meteorites," he said (July 19, Tachikawa City, Tokyo institute) [Jiji]
9 years to collect meteorites in Antarctica expedition
Newsletter 2009 - November 21
Iin Antarctica 9 years meteorite (meteorite) were collected during the previous survey and Professor, Institute of Polar Research to collect Kozima Hideyasu meteorite from Mars. Professor Kojima is "regain possession of the world of meteorites," he said (July 19, Tachikawa City, Tokyo institute) [Jiji]
東京ミネラルショー「ペア招待券+アンモナイトの化石」を3人に
日刊ゲンダイ - 2009年11月18日
鉱物・化石・隕石・宝石が集う日本最大の展示即売会「東京ミネラルショー~地球の芸術たち。~」が12月11~14日に池袋サンシャインシティ文化会館で開催。目玉は、モロッコで発掘された世界最大級の変形アンモナイトの群集化石4点の特別展示。 ...
Tokyo mineral shows "pair + invitation ammonite fossil," the Nikkan Gendai three people - 2009 November 18
Gem mineral fossil meteorite exhibition and sale of Japan's largest gathering of "Art of the Earth - Tokyo Mineral Show us. ~ "held on December 11 to 14 days at Ikebukuro Sunshine City Bunka Kaikan. Highlights the deformed ammonite fossil assemblage of the world's largest exhibition presents four points unearthed in Morocco. ...
Tokyo mineral shows "pair + invitation ammonite fossil," the Nikkan Gendai three people - 2009 November 18
Gem mineral fossil meteorite exhibition and sale of Japan's largest gathering of "Art of the Earth - Tokyo Mineral Show us. ~ "held on December 11 to 14 days at Ikebukuro Sunshine City Bunka Kaikan. Highlights the deformed ammonite fossil assemblage of the world's largest exhibition presents four points unearthed in Morocco. ...
南極で9年ぶり隕石採集へ=「保有数、再び世界一を」-水星、金星ものに期待
時事通信 - 2009年11月20日
24日に成田空港から出発する第51次南極地域観測隊では、国立極地研究所の小島秀康教授(58)ら7人が9年ぶりに隕石(いんせき)採集を行う。日本は約1万6200個の隕石を保有し、かつては世界一を誇ったが、米国が約1万7300個に達し、抜かれてしまった。 ...
Nine years to collect meteorites in Antarctica = "Number of holdings, the world again" - Mercury, Venus are expected Newsletter - November 20, 2009
24 days of departure from Narita Airport Station Antarctica 51 Next The Corps, a professor of the Institute of Polar Research Kozima Hideyasu (58) were seven to nine years meteorite (meteorite) to collect. Japan owns about 16.2 thousand pieces meteorite once boasted the world about the United States reached 17.3 thousand pieces, but was overtaken. ...
Nine years to collect meteorites in Antarctica = "Number of holdings, the world again" - Mercury, Venus are expected Newsletter - November 20, 2009
24 days of departure from Narita Airport Station Antarctica 51 Next The Corps, a professor of the Institute of Polar Research Kozima Hideyasu (58) were seven to nine years meteorite (meteorite) to collect. Japan owns about 16.2 thousand pieces meteorite once boasted the world about the United States reached 17.3 thousand pieces, but was overtaken. ...
[どうして南極で観測をするの?]
秋田魁新報 - 2009年11月21日
オーロラなど宇宙に関すること、気象や空気、水に関すること、宇宙から落ちてきた隕石や地質など地球に関すること、植物や動物など生物に関することです。日本には南極に昭和、みずほ、あすか、ドームふじの四つの基地があります。今は主に昭和、ドームふじで活動してい ...
[The observations in the Antarctic to why? ] Akita Sakigake Shimpo - 2009 November 21, about the universe that Sun and the Aurora, weather and air, that of water, such as that on Earth meteorite fell from space and geology, and biology is that for plants and animals. Antarctic Showa in Japan, Mizuho, Asuka, there are four of the Dome Fuji Station. Showa now mainly active in the Dome Fuji they ...
[The observations in the Antarctic to why? ] Akita Sakigake Shimpo - 2009 November 21, about the universe that Sun and the Aurora, weather and air, that of water, such as that on Earth meteorite fell from space and geology, and biology is that for plants and animals. Antarctic Showa in Japan, Mizuho, Asuka, there are four of the Dome Fuji Station. Showa now mainly active in the Dome Fuji they ...
Posted by
Lunar Meteorite * Hunter
at
5:42 pm
Labels:
Antarctica,
Antarctica 51,
Institute of Polar Research Japan,
Kojima Hideyasu
18 November 2009
Meteor/Meteorite News- 18NOV09
Mini Ice Age Took Hold of Europe in Months
Detailed studies of ancient climate have revealed that the onset of Europe's "Big Freeze", 13,000 years ago, was anything but glacial . (New Scientist) more...
Frigid Antarctica Loaded with Viruses
Antarctica's icy lakes are home to a surprisingly diverse community of viruses, including some that were previously unidentified, a new study finds. (Live Science) more...
The Associated Press NEW DELHI — Thousands of stargazers across Asia stayed awake overnight to catch a glimpse of what was advertised as an intense Leonid meteor shower, ... Туман скрыл метеорит Леонид от Азии Газета.Ru - Москва,Russia Люди,собравшиеся посмотреть на метеорит над территорией Азии, так и не смогли его увидеть, сообщает Associated Press. Зрелищу помешал опустившийся туман. ... Cloud cover blocks meteor showers in India, Nepal The Associated Press NEW DELHI — Thousands of stargazers stayed awake overnight for what was forecast as an intense Leonid meteor shower over Asia this year, ... See video of Leonid Meteor Shower November 2009 Examiner.com The Leonid Meteor Shower can be viewed around the world from November 13-20, 2009. Astronomers estimated the peak to be early Tuesday morning (the 17), ... | ||
Leonid Meteor Shower to Perform Late Tonight Media Newswire (press release) The annual Leonid meteor shower should be reaching its climax late tonight in the US, from about 1 am your local time to dawn Tuesday morning November 17th. ... | ||
Meteor shower obscured by cloud (+pic) New Zealand Herald Photo / AP A meteor shower which passed over the country this morning was marred by cloudy weather. From 1am, cloud covered the North Island and most of the ... |
http://earthobservatory.nasa.gov/Newsroom/view.php?id=41280&src=eoa-nnews
Times of India
NEW DELHI: Amateur astronomers and stargazers braced themselves for the experience of a lifetime as spectacular fireworks in the night skies meteor showers ...
Kan. father, son suspect meteorite landed at home
The Associated Press
They are convinced it's a meteorite. Chandler Harp, 10, was playing in the backyard of his Liberal home when he heard what sounded like an explosion about ...
Google Image Swirl launches in Labs
VatorNews
Clicking on the black-and-white picture in the upper-right hand corner opens up a whole new cluster of other (mostly) black-and-white photos of meteor ...
Cosmic debris: Where to watch the Leonid meteor shower
Los Angeles Times
Fret not, because you still have tonight to catch the most active moments of the annual Leonid meteor shower. It may look like the work of a big-budget ...
Upcomming meteor shower will be big Carolinian (subscription) Meteor showers occur throughout the year in various places and times. They are caused by the Earth intersecting small debris, like dust and rocks, ... |
Leonid Meteor Shower starts tonight,early tommorrow morning Oneonta Daily Star The Leonid Meteor Shower will be visible tonight starting at 11pm and will end November 18th at 4am. Although Asia is in the best position to see the shower ... |
Posted by
Lunar Meteorite * Hunter
at
7:55 am
Labels:
'2012' hysteria,
Antarctica,
Leonid meteor shower NOV 2009,
viruses
08 April 2009
Tiny Rock Found in Antarctica Excites Astrochemists 8APR09
Tiny rock excites astrochemists
BBC NEWS
http://news.bbc.co.uk/2/hi/science/nature/7985788.stm
A "unique" micrometeorite found in Antarctica is challenging ideas about how planets can form.Detailed analysis has shown that the sample, known as MM40, has a chemical composition unlike any other fragment of fallen space rock. This, say experts, raises questions about where it originated in the Solar System and how it was created. It also means that astrochemists must expand their list of the combinations of materials in planetary crusts.
The detailed analysis of MM04 was led by Matthieu Gounelle from the Laboratory of Mineralogy and Cosmochemistry at the French Natural History Museum. Published in PNAS, the analysis revealed the "unique" chemical composition of MM04 despite it being only 150 microns across as its widest point - about half the width of a written full stop.
Micrometeorites are often seen as the 'poor man's space probe' Dr Caroline Smith, Natural History Museum Dr Caroline Smith, curator of meteorites at the Natural History Museum, London,UK, said the sample was important because of the role that the study of meteorites played in our understanding of Solar System and planetary formation.
MM04 was a basaltic achondritic micrometeorite, said Dr Smith. Achondritic meteorites were formed when the Solar System's planets were coming into being. The substances in such meteorites and the processes they have undergone can give clues about how the larger bodies were formed. By contrast, chondritic meteorites were formed during the the Solar System's early days before material had accreted into planets. They have not been altered by the melting and re-crystalisation that has utterly transformed the nature of, say, Earth rocks.
Dr Mahesh Anand, an astrochemist from the department of Earth & Environmental Sciences at the Open University, said: "It is fascinating as to how much information can be retrieved about the processes involved in planetary formation from tiny fragments of extra-terrestrial material that routinely arrive on Earth anonymously."For Dr Smith, the excitement of MM04 lay in the mystery of its origins."We have basaltic meteorites that are thought to come from an asteroid called 4Vesta and we also have basaltic meteorites from the Moon and Mars," said Dr Smith. "But [MM04's] chemistry does not match any of those places," she said. "It has to be from somewhere else."While its ultimate origins are a mystery it does have implications for the ways that astrochemists thought planets could be formed.
The analysis of MM04 showed that the "inventory" of such processes must be expanded, said Dr Smith."Micrometeorites are often seen as the 'poor man's space probe'," said Dr Smith "They land on Earth fortuitously and we do not have to spend millions of dollars or euros on a robotic mission to get them."
BBC NEWS
http://news.bbc.co.uk/2/hi/science/nature/7985788.stm
A "unique" micrometeorite found in Antarctica is challenging ideas about how planets can form.Detailed analysis has shown that the sample, known as MM40, has a chemical composition unlike any other fragment of fallen space rock. This, say experts, raises questions about where it originated in the Solar System and how it was created. It also means that astrochemists must expand their list of the combinations of materials in planetary crusts.
The detailed analysis of MM04 was led by Matthieu Gounelle from the Laboratory of Mineralogy and Cosmochemistry at the French Natural History Museum. Published in PNAS, the analysis revealed the "unique" chemical composition of MM04 despite it being only 150 microns across as its widest point - about half the width of a written full stop.
Micrometeorites are often seen as the 'poor man's space probe' Dr Caroline Smith, Natural History Museum Dr Caroline Smith, curator of meteorites at the Natural History Museum, London,UK, said the sample was important because of the role that the study of meteorites played in our understanding of Solar System and planetary formation.
MM04 was a basaltic achondritic micrometeorite, said Dr Smith. Achondritic meteorites were formed when the Solar System's planets were coming into being. The substances in such meteorites and the processes they have undergone can give clues about how the larger bodies were formed. By contrast, chondritic meteorites were formed during the the Solar System's early days before material had accreted into planets. They have not been altered by the melting and re-crystalisation that has utterly transformed the nature of, say, Earth rocks.
Dr Mahesh Anand, an astrochemist from the department of Earth & Environmental Sciences at the Open University, said: "It is fascinating as to how much information can be retrieved about the processes involved in planetary formation from tiny fragments of extra-terrestrial material that routinely arrive on Earth anonymously."For Dr Smith, the excitement of MM04 lay in the mystery of its origins."We have basaltic meteorites that are thought to come from an asteroid called 4Vesta and we also have basaltic meteorites from the Moon and Mars," said Dr Smith. "But [MM04's] chemistry does not match any of those places," she said. "It has to be from somewhere else."While its ultimate origins are a mystery it does have implications for the ways that astrochemists thought planets could be formed.
The analysis of MM04 showed that the "inventory" of such processes must be expanded, said Dr Smith."Micrometeorites are often seen as the 'poor man's space probe'," said Dr Smith "They land on Earth fortuitously and we do not have to spend millions of dollars or euros on a robotic mission to get them."
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