The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

This video explores obscure answers to the Fermi Paradox, asking why the universe seems silent if alien civilizations should ...

The pilots dubbed the fireballs “foo fighters” but had no idea what they were. Plasma? Enemy tech? Aliens? We still haven’t ...

These spheres from the abyss conceal creatures with startling biology.

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

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