DARPA to transfer Space Surveillance Telescope to US Air Force

At a mountaintop in New Mexico, DARPA is marking the formal transition of its Space Surveillance Telescope (SST) from an Agency-led design and construction program to ownership and operation by U.S. Air Force Space Command (AFSPC), which has announced plans

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Scientists use Moon to study dinosaur killer

A team of scientists led by Universities Space Research Association’s David Kring at the Lunar and Planetary Institute is using observations of the Moon to further understand the impact on Earth that is linked to the extinction of the dinosaurs.

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At the New Jersey shore, signs of a comet, and a climate crisis

In a new study, scientists say they have found evidence along the New Jersey coast that an extraterrestrial object hit the earth at the same time a mysterious release of carbon dioxide suddenly warmed the planet, some 55.6 million years

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Comet impact ‘linked’ to rise of mammals

A comet impact 55 million years ago may have helped mammals dominate the Earth. It could have triggered a rapid phase of global warming linked to the expansion of mammal groups during the Eocene time period. Writing in the journal

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Extraterrestrial Impact Preceded Ancient Global Warming Event

A comet strike may have triggered the Paleocene-Eocene Thermal Maximum (PETM), a rapid warming of the Earth caused by an accumulation of atmospheric carbon dioxide 56 million years ago, which offers analogs to global warming today. Sorting through samples of

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Chicxulub ‘dinosaur crater’ investigation begins in earnest

Scientists have obtained remarkable new insights into the asteroid impact that wiped out the dinosaurs. They have been examining rocks from the crater that the 15km-wide space object dug out of what is now the Gulf of Mexico some 66

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A facelift for the Moon every 81,000 years

The Moon is bombarded by so much space rock that its surface gets a complete facelift every 81,000 years, according to a study released Wednesday based on NASA data. This churn — affecting the top two centimetres (nearly an inch)

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Origin of minor planets’ rings revealed

A team of researchers has clarified the origin of the rings recently discovered around two minor planets known as centaurs, and their results suggest the existence of rings around other centaurs. These findings were published on August 29 in Astrophysical

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NASA Creates Software to Keep Tabs on Killer Asteroids

Scout, a new computer system, will allow for the detection of potentially dangerous asteroids, and calculate their possible impact point on the Earth’s surface. The program can identify asteroids likely to hit the Earth, automatically calculating the path and impact

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Researchers explain how minor planets got their rings

Scientists have determined the origin of the rings that surround a pair of minor planets orbiting between Jupiter and Neptune. The minor planets are known as centaurs, and are just two of 44,000 such objects. Centaurs have a diameter of

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