Just three decades ago, astronomers had no evidence that planets commonly orbited other stars. Then in 2025, NASA confirmed ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

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

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Learn about a new working paper that argues that consciousness may not be limited to Earth-like biology, raising the ...

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