Is life as rare as we once believed? A new Penn State study suggests that intelligent life is more likely than previously ...

While our solar system is a fascinating place on its own, exoplanets are even more of a mystery. And one exoplanet in particular is something quite new.

Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to a new model for how intelligent life developed on Earth.

New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.

Astronomers have detected an exoplanet just twenty light years away that's residing in its star's habitable zone.

A fast-moving star, possibly with an exoplanet, has been detected in the Milky Way, challenging current astrophysical models.

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

Roughly 300,000 years ago, our species first appeared on the African landscape before spreading globally and coming to ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

NASA said the system is thought to be moving at least 1.2 million miler per hour, nearly twice as fast as our solar system.

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...