Study rebuts hypothesis that comet attacks ended 9,000-year-old Clovis culture
(Phys.org)—Rebutting a speculative hypothesis that comet explosions changed Earth's climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough ...
Life on Earth shockingly comes from out of this world
(Phys.org) —Early Earth was not very hospitable when it came to jump starting life. In fact, new research shows that life on Earth may have come from out of this world.
Study supports theory of extraterrestrial impact
A 16-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has identified a nearly 13,000-year-old layer of thin, dark sediment buried in the ...
Impact glass stores biodata for millions of years
(Phys.org) —Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists ...
Herschel links Jupiter's water to comet impact
(Phys.org) —ESA's Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic ...
Comet Siding Spring is a close call for Mars, wake up call for Earth
It was 20 years ago this past July when images of Jupiter being pummeled by a comet caught the world's attention. Comet Shoemaker-Levy 9 had flown too close to Jupiter. It was captured by the giant planet's ...
No evidence for ancient comet or Clovis catastrophe, archaeologists say
(PhysOrg.com) -- New research challenges the controversial theory that the impact of an ancient comet devastated the Clovis people, one of the earliest known cultures to inhabit North America.
Waiter, there's metal in my moon water
(PhysOrg.com) -- Bring a filter if you plan on drinking water from the moon. Water ice recently discovered in dust at the bottom of a crater near the moon's south pole is accompanied by metallic elements like ...
Topper site in middle of comet controversy
(Phys.org)—Did a massive comet explode over Canada 12,900 years ago, wiping out both beast and man in North America and propelling the earth back into an ice age?
Research team claims to have found evidence Lake Cheko is impact crater for Tunguska Event
Deep Impact mission ends, leaves bright comet tale
(Phys.org) —NASA today announced the end of operations for the Deep Impact spacecraft, history's most traveled deep-space comet hunter, after trying unsuccessfully for more than a month to regain contact ...
Rosetta comet comes alive
A spacecraft from Earth is about to do something no spacecraft has ever done before: orbit a comet and land on its surface.
Jupiter had temporary moon for 12 years
Comet 147P/Kushida-Muramatsu was captured as a temporary moon of Jupiter in the mid-20th century and remained trapped in an irregular orbit for about twelve years.
Latest EPOXI findings on Comet Hartley 2 published
Comet Hartley 2, is in a hyperactive class of its own compared to other comets visited by spacecraft, says a University of Maryland-led study published in the June 17 issue of the journal Science.