(Phys.org)—The first measurements of the elemental composition of the surface of the giant asteroid Vesta indicate that hydrogen was brought to the body by impactors, research by a team led by Planetary Science Institute ...
Space Exploration
Sep 20, 2012
4
0
The most-studied mass extinction in Earth history happened 65 million years ago and is widely thought to have wiped out the dinosaurs. New University of Washington research indicates that a separate extinction came shortly ...
Earth Sciences
Sep 5, 2012
4
0
(PhysOrg.com) -- A wider range of asteroids were capable of creating the kind of amino acids used by life on Earth, according to new NASA research.
Space Exploration
Jan 19, 2011
2
0
(PhysOrg.com) -- Dinosaurs, along with over half of other species, became extinct at the end of the Cretaceous period about 65.5 million years ago, and many scientists believe this was due to a single impact with an asteroid ...
(PhysOrg.com) -- If scientists detect an asteroid headed directly for Earth - one that was large enough to pose a serious threat to life on our planet - would it be wise to bring out nuclear weapons to prevent an impact? ...
(PhysOrg.com) -- Responding to challenges to the hypothesis that an asteroid impact caused a mass extinction on Earth 65 million years, a panel of 41 scientists re-analyzed data and provided new evidence, concluding that ...
Earth Sciences
Mar 4, 2010
4
0
A 17-member team has found what may be the smoking gun of a much-debated proposal that a cosmic impact about 12,900 years ago ripped through North America and drove multiple species into extinction.
Earth Sciences
Jul 20, 2009
5
1
A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs ...
Evolution
Jun 27, 2023
2
3120
Using ESO's Very Large Telescope (VLT), two teams of astronomers have observed the aftermath of the collision between NASA's Double Asteroid Redirection Test (DART) spacecraft and the asteroid Dimorphos. The controlled impact ...
Astronomy
Mar 21, 2023
0
137
A Martian megatsunami may have been caused by an asteroid collision similar to the Chicxulub impact—which contributed to the mass extinction of all non-avian dinosaurs on Earth 66 million years ago—in a shallow ocean ...
Planetary Sciences
Dec 1, 2022
11
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