Luis Elizondo, former head of the Pentagon’s top secret UFO program, discusses his new memoir and his quest to force the ...

LTT 1445 Ac is roughly the size of Earth and about 22 light-years away in the constellation Eridanus. The planet orbits the ...

The Jupiter Icy Moons Explorer (Juice) spacecraft, barreling through our solar system, recently used Earth's gravity to ...

No, they're not real arachnids scurrying across the Red Planet's surface — instead ... the discovery that Earth may have once ...

Watching for changes in the Red Planet’s orbit over time could be a new way to detect passing dark matter. MIT physicists ...

Tracy C. Dyson is from Arcadia and earned a doctorate in chemistry at UC Davis in 1997. The Expedition 71 flight engineer is on the ISS as part of her third mission to space. She previously was a ...

From Grace Earth may have had its own ring system that formed around 466 million years ago, lasting for tens of millions of ...

Impact craters found around the Earth that were made around the same time could be linked to debris falling from a ring, a ...

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The sun is midway through its life of fusion. It's about 5 billion years old, and though its life is far from over, it will ...

The European Space Agency's Jupiter Icy Moons Explorer (JUICE) probe has spotted a habitable planet roughly one astronomical ...

"Primordial black holes do not live in the solar system. Rather, they’re streaming through the universe, doing their own thing. And the probability is, they’re going through the inner solar system at ...