News tagged with asteroid bombardment

Tiny 'spherules' reveal details about Earth's asteroid impacts

(Phys.org) -- Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers ...

Space & Earth / Earth Sciences

created Apr 25, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

The origin of the moon's craters

(PhysOrg.com) -- Moon's craters, together with samples of the surface returned during the Apollo program, tell the story of impacts from two different populations of small bodies. The first rocky collection ...

Space & Earth / Space Exploration

created Mar 19, 2012 | popularity 4 / 5 (2) | comments 0 | with audio podcast

Biggest, Deepest Crater Exposes Hidden, Ancient Moon

(PhysOrg.com) -- Shortly after the Moon formed, an asteroid smacked into its southern hemisphere and gouged out a truly enormous crater, the South Pole-Aitken basin, almost 1,500 miles across and more than ...

Space & Earth / Space Exploration

created Mar 04, 2010 | popularity 4.3 / 5 (10) | comments 1 | with audio podcast




Search results for asteroid bombardment


A new look at Apollo samples supports ancient impact theory

New investigations of lunar samples collected during the Apollo missions have revealed origins from beyond the Earth-Moon system, supporting a hypothesis of ancient cataclysmic bombardment for both worlds.

Space & Earth / Space Exploration

created May 24, 2012 | popularity 5 / 5 (3) | comments 1

Study of moon rocks shows barrage 4 billion years ago was mainly asteroids

(Phys.org) -- Researchers have known for some years that the Earth and moon were subjected to a veritable barrage of objects striking their surfaces nearly four million years ago, but less certain was whether ...

Space & Earth / Space Exploration

created May 18, 2012 | popularity 3.2 / 5 (6) | comments 6 | with audio podcast report

Asteroid collision that spawned Vesta's asteroid family occurred more recently than thought

A team of researchers led by a NASA Lunar Science Institute (NLSI) member based at Southwest Research Institute has discovered evidence that the giant impact crater Rheasilvia on Asteroid (4) Vesta was created ...

Space & Earth / Space Exploration

created May 10, 2012 | popularity 4.8 / 5 (4) | comments 6 | with audio podcast

You're beautiful, Vesta

When UCLA's Christopher T. Russell looks at the images of the protoplanet Vesta produced by NASA's Dawn mission, he talks about beauty as much as he talks about science.

Space & Earth / Space Exploration

created May 10, 2012 | popularity 5 / 5 (4) | comments 0

Dawn spacecraft reveals secrets of giant asteroid Vesta

(Phys.org) -- Findings from NASA's Dawn spacecraft reveal new details about the giant asteroid Vesta, including its varied surface composition, sharp temperature changes and clues to its internal structure. ...

Space & Earth / Space Exploration

created Apr 26, 2012 | popularity 4.4 / 5 (7) | comments 4 | with audio podcast

Splatters of molten rock signal period of intense asteroid impacts on Earth

New research reveals that the Archean era — a formative time for early life from 3.8 billion years ago to 2.5 billion years ago — experienced far more major asteroid impacts than had been previously ...

Space & Earth / Space Exploration

created Apr 25, 2012 | popularity 4.6 / 5 (7) | comments 2 | with audio podcast

Martian meteorite touches down at the University of Glasgow

(Phys.org) -- After hundreds of thousands of years drifting in space, a piece of the rocky surface of Mars has made its way into the hands of scientists at the University of Glasgow.

Space & Earth / Space Exploration

created Apr 24, 2012 | popularity 5 / 5 (2) | comments 0

Impacts could be boon for subterranean life

An incoming asteroid is trouble whether you're a dinosaur or a Bruce Willis fan. But microbes living deep underground may actually welcome the news, according to a recent study of an ancient impact in the ...

Space & Earth / Space Exploration

created Apr 16, 2012 | popularity 4.8 / 5 (5) | comments 4 | with audio podcast

Team finds asteroids were bombarded by iron loving elements too

(Phys.org) -- A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in ...

Space & Earth / Space Exploration

created Apr 06, 2012 | popularity 4.8 / 5 (5) | comments 3 | with audio podcast report

New evidence that comets deposited building blocks of life on primordial Earth

New research reported today at the 243rd National Meeting & Exposition of the American Chemical Society (ACS) provides further support for the idea that comets bombarding Earth billions of years ago carrie ...

Space & Earth / Space Exploration

created Mar 27, 2012 | popularity 4.7 / 5 (6) | comments 2 | with audio podcast


List of search results for asteroid bombardment