From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Venus and Mars may have once supported life. This video explores the evidence and theories surrounding the potential for life on these planets. #space #aliens #nasa ...

In 1957, a 300-foot craft landed quietly in Virginia. Out stepped a man in a metallic jumpsuit who simply said, “I need to see the president.” His name? Valiant Thor. He claimed to be from Venus—and ...

A strange world just 47 light-years from Earth is rewriting what scientists thought they knew about alien planets. Hidden ...

From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike ...

Vladimir Putin jokes that interstellar comet 3I/ATLAS is a 'secret weapon' as the mysterious object sweeps past Earth.

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

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The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...