News tagged with 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
Apr 25, 2012 |
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Asteroid Attack 4 Billion Years Ago May Have Accelerated Life on Earth
(PhysOrg.com) -- The bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life on the planet and may even have given ...
Space & Earth / Earth Sciences
May 20, 2009 |
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How ion bombardment reshapes metal surfaces
To modify a metal surface at the scale of atoms and molecules — for instance to refine the wiring in computer chips or the reflective silver in optical components — manufacturers shower it with ions. ...
May 23, 2012 |
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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
Mar 19, 2012 |
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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
Mar 04, 2010 |
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Scientists cool gas by laser bombardment
Three decades ago, American and Finnish scientists came up with a very powerful method for cooling gases by "laser bombardment." Only now were physicists at the University of Bonn able to demonstrate that it actually works. ...
Sep 02, 2009 |
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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
May 24, 2012 |
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Apollo 16: What young really means on the moon
(PhysOrg.com) -- One of the main goals of the Apollo 16 mission was to explore and sample a young bright-rayed crater aptly named North Ray crater (890 m diameter). Its high reflectivity is due to its young ...
Space & Earth / Space Exploration
Mar 09, 2012 |
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New INL project tackles nuclear fuel recycling science
(PhysOrg.com) -- A new research project at Idaho National Laboratory and Argonne National Laboratory will use an innovative approach to learn how to get more use from nuclear fuel.
Sep 24, 2009 |
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