A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity of alien life and positioning Earth as one of the first habitable planets.

NASA's New Horizons probe has woken up in good health nearly 6 billion miles away beyond Pluto after spending nearly a year ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

In July 2025, astronomers detected a mysterious object entering the solar system from interstellar space. Since then, the discovery has sparked widespread interest, fueling debate over its origins and ...

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Add Yahoo as a preferred source to see more of our stories on Google. While the scientific community has overwhelmingly concluded it’s a comet, researchers wanted to find out for sure whether 3I/ATLAS ...

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...