Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Astronomers finally spotted evidence of auroras on Neptune after years of searching, raising new questions about the planet.

The decision comes as the Voyager spacecraft face diminishing power supplies due to the gradual decay of their radioactive ...

A NASA mission, IMAP, will investigate and map the sun's particles and energy across the entire heliosphere, using a ...

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

Work from the DiSCo program (Discovering the Composition of Trans-Neptunian Objects) has uncovered the existence of three ...

What drives us to send probes throughout the Solar System and rovers and landers to Mars? It's not cheap, and it's not easy.

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...