Search results for meteor

Astrobiology May 25, 2023

Meteoritic and volcanic particles may have promoted origin of life reactions

Precursors of the molecules needed for the origin of life may have been generated by chemical reactions promoted by iron-rich particles from meteors or volcanic eruptions on Earth approximately 4.4 billion years ago, according ...

Earth Sciences May 18, 2023

Alaska scientists find novel way to aid earthquake magnitude determination

Sensors that detect changes in atmospheric pressure due to ground shaking can also obtain data about large earthquakes and explosions that exceed the upper limit of many seismometers, according to new research.

Astrobiology May 2, 2023

A stormy, active sun may have kickstarted life on Earth

The first building blocks of life on Earth may have formed thanks to eruptions from our sun, a new study finds.

Astronomy Apr 25, 2023

Asteroid's comet-like tail is not made of dust, solar observatories reveal

A weird asteroid has just gotten a little weirder.

Ecology Apr 24, 2023

From sanguine to hypersaline: Global salt lakes in decline

At its grand opening in 1913, the Los Angeles Aqueduct sent a torrent of fresh mountain water cascading into the Los Angeles valley to the cheers of an onlooking crowd of 30,000 people. The water, diverted from the Owens ...

Astronomy Apr 17, 2023

Asteroid hits Earth hours after being spotted, meteor turns into 'beautiful' fireball over Europe

An asteroid hit Earth hours after it was discovered Monday, turning into a dazzling fireball that was spotted throughout Europe.

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 ...

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