Life on our planet appeared early in Earth's history. Surprisingly early, since in its early youth our planet didn't have much of the chemical ingredients necessary for life to evolve. Since prebiotic chemicals such as sugars ...
Astrobiology
Feb 26, 2024
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In recent research published by myself and my colleague Tony Yeates in the journal Tectonophysics, we investigate what we believe—based on many years of experience in asteroid impact research—is the world's largest known ...
Earth Sciences
Aug 10, 2023
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New research led by Lawrence Livermore National Laboratory (LLNL) provides a better understanding of ejecta production, which has been the subject of broad interest for more than 60 years throughout the scientific community.
General Physics
Feb 22, 2023
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A cosmic drama unfolded over southern Ontario on the night of Friday, Nov. 18, triggering an international collaboration and a meteorite hunt. Just before midnight Eastern time, the Catalina Sky Survey in Arizona detected ...
Astronomy
Nov 22, 2022
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30
About a decade ago, the prospect of "asteroid mining" saw a massive surge in interest. This was due largely to the rise of the commercial space sector and the belief that harvesting resources from space would soon become ...
Space Exploration
Nov 17, 2022
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55
Two tails of dust ejected from the Didymos-Dimorphos asteroid system are seen in new images from NASA's Hubble Space Telescope, documenting the lingering aftermath of NASA's Double Asteroid Redirection Test (DART) impact.
Astronomy
Oct 20, 2022
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5
NASA's Double Asteroid Redirection Test (DART) spacecraft intentionally crashed into Dimorphos, the asteroid moonlet in the double-asteroid system of Didymos, on Monday, 26 September 2022. This was the first planetary defense ...
Astronomy
Oct 3, 2022
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56
In 2011, a small meteorite was found in the Sahara Desert. Designated Northwest Africa (NWA) 7034 or "Black Beauty," the blackened chunk of volcanic crystal turned out to be a little piece of Mars, flung into space by an ...
Planetary Sciences
Jul 13, 2022
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74
The idea of avoiding asteroid impacts has featured prominently in the public's mind for decades—especially since the release of movies such as Deep Impact and Armageddon. But is using a nuclear explosion the best way to ...
Space Exploration
Oct 18, 2021
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In an alternate reality playing out at this year's international Planetary Defense Conference, a fictional asteroid crashes over Europe, 'destroying' a region about 100 km wide near the Czech Republic and German border. The ...
Space Exploration
May 3, 2021
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