meteorite

If You Could Travel to Mars, Would You Go?

...xplorers to Mars. With more than 28 experiences, Facing Mars combines a range of hands-on experiences with compelling artifacts, such as a rare Mars meteorite from West Africa and stunning imagery to engage participants in the physical, psychological and scientific challenges involved in journeying to Mars. ...

Spacesuits of the Future Will Be as Flexible as Spidermans

...he body. Apart from the flexibility factor, the BioSuit is also safe compared to a traditional spacesuit. If a tiny meteorite or other object were to accidentally puncture a traditional spacesuit, the astronaut must return to the space station or home base immediately, before...

meteorite in Medical Dictionary

Passive

...line English dictionary and encyclopedia. passive ... passive - the voice used to indicate that the ... passive ... The passive form of "A meteorite hit the earth" is "The earth was hit by a meteorite. ... passive in Webster's Revised Unabridged Dictionary, G. & C. Merriam, 1913 ... Showc...

meteorite in Biological News

Princeton geoscientist offers new evidence that meteorite did not wipe out dinosaurs

A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position. Gerta Keller, whose studies of rock formations at many sites in the United States, Me...

August 2009 Geology and GSA Today media highlights

...ater beneath the Yucatan Peninsula of Mexico has been known for almost two decades. This crater, named after the town Chicxulub, was formed by a giant meteorite impact about 65 million years ago. The impact may have been responsible for the great extinction event that occurred at the Cretaceous-Paleogene bound...

Extraterrestrial platinum was 'stirred' into the Earth

...mantle and crust with none," Dr Barnes said. "Following that, a steady rain of meteorites created the so-called Late Veneer a thin surface layer of meteorite debris rich in platinum." With time through large-scale convection processes, which now cause plate tectonics, this material was stirred down into t...

NASA researchers find clues to a secret of life

...gical molecules, like amino acids, created in space and brought to Earth by meteorite impacts help explain why life is left-handed," said Dr. Daniel Glavin of NA...ed it for the first time in the Orgueil meteorite, which belongs to another meteorite group believed to be from an extinct comet," said Glavin. The team also ...

December 2008 Geology and GSA Today media highlights

...iences, 1-26 Earth Sciences Building, University of Alberta, Edmonton, Alberta T6G 2E3, Canada. Pages 955-958. Based on the amount and frequency of meteorite falls and the formation of impact craters on the Earth, there should be over 20 impact craters in the A landslide in Tertiary marine shale with ...

Geologist who linked cosmic strike to dinosaurs' extinction takes top prize

...comets and asteroids. In 1980, the scientists proposed that most species of life, including all the dinosaurs, were extinguished when a giant comet or meteorite struck, sending out fireballs and tsunamis, then cooling and darkening the skies with a years-long pall of debris. Among the survivors who later thriv...

Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2008

...gists and geochemists help support a theory that a meteorite may be responsible for the sudden climate change t...ilica matrix, which is one indicator of a possible meteorite impact," said lead author Mostafa Fayek of the Uni...istent with that of tektites associated with other meteorite impact sites such as those found in Romania. Fundi...

September Geology and GSA Today media highlights

...n Mars and Jupiter. The source of these dust particles was determined by observations of their mineralogy and chemistry (which closely match a type of meteorite known as ordinary chondrites) and from calculations that show that matching abundances of dust particles are delivered to Earth from Koronis. The Koro...

Bringing Martian samples to Earth -- preparations outlined in journal Astrobiology

..., as well as sample archiving for future studies. Unlike the situation with meteorite samples from Mars, returned samples could be collected from multiple select...ormation and would represent types of materials that are not present in the meteorite collection. Furthermore, the samples could be packaged and transported unde...

August 2008 Geology and GSA Today media highlights

...fossils of small bacteria have been found in old sedimentary rocks and in a meteorite from Mars. These structures were interpreted as possible evidence for extra... molecules in the environment. Therefore, the ancient rocks and the Martian meteorite containing these structures may indicate the existence of very old terrestr...

meteorite in Biological Technology

'Far From Beyond': A Glimpse into the World of Biotechnology and the Future of the Free World

...the top with the successes of several of their blockbuster protein drugs. Reminisce with him about a mysterious night in the 1970s when he witnessed a meteorite crash near a creek on his grandfather's farm. Stand with his wife Kate, and a team of doctors at the foot of his hospital bed wondering why such a hea...

meteorite in Biological Definition

Prokaryote

...ssful and abundant organism even today. While earth is the only known place where prokaryotes exist, some have suggested structures within a Martian meteorite should be interpreted as fossil prokaryotes, but this is extremely doubtful. After the first prokaryotes arose, they diversifed explosively throug...