Search results for meteor

Astronomy Apr 17, 2023

NASA satellite's elusive green lasers spotted at work

The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture meteors, allowing him to ...

Planetary Sciences Apr 12, 2023

How the world's oldest known meteorite impact structure changed the chemistry of Earth's crust

Meteorite impacts can be cataclysmic events in the history of a planet, melting rock, changing atmospheric chemistry, and wreaking general havoc.

Social Sciences Apr 5, 2023

Opinion: Racist and sexist depictions of human evolution still permeate science, education and popular culture today

Systemic racism and sexism have permeated civilization since the rise of agriculture, when people started living in one place for a long time. Early Western scientists, such as Aristotle in ancient Greece, were indoctrinated ...

Planetary Sciences Mar 26, 2023

Two meteorites are providing a detailed look into outer space

If you've ever seen a shooting star, you might have actually seen a meteor on its way to Earth. Those that land here are called meteorites and can be used to peek back in time, into the far corners of outer space or at the ...

Astronomy Mar 9, 2023

High-fidelity simulation offers insight into 2013 Chelyabinsk meteor

On the morning of Feb. 15, 2013, a small asteroid exploded over Chelyabinsk, Russia, sending a loud shockwave and sonic boom across the region, damaging buildings and leaving around 1,200 people injured. The resulting meteor, ...

Space Exploration Mar 8, 2023

NASA gathering tools that can assess damage, verify parts made in space

An ensemble of microscopes, medical-style equipment, and other 3D scanners is providing insights that could help human and robotic explorers survive the harsh environments of deep space, the moon, Mars and beyond.

Space Exploration Mar 4, 2023

New results from NASA's DART planetary defense mission confirm we could deflect deadly asteroids

What would we do if we spotted a hazardous asteroid on a collision course with Earth? Could we deflect it safely to prevent the impact?

Earth Sciences Mar 2, 2023

Robot provides unprecedented views below Antarctic ice shelf

High in a narrow, seawater-filled crevasse in the base of Antarctica's largest ice shelf, cameras on the remotely operated Icefin underwater vehicle relayed a sudden change in scenery.

Planetary Sciences Feb 22, 2023

Meteorite crater discovered in French winery

Countless meteorites have struck Earth in the past and shaped the history of our planet. It is assumed, for example, that meteorites brought with them a large part of its water. The extinction of the dinosaurs might also ...

Astronomy Feb 15, 2023

Chelyabinsk a decade on: The sun's invisible asteroids

No one saw the Chelyabinsk meteor of February 15, 2013 coming—the largest asteroid to strike Earth in over a century. Just after sunrise on a sunny winter's day, a 20-meter, 13,000-ton asteroid struck the atmosphere over ...

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