Scientists using NASA's Transiting Exoplanet Survey Satellite (TESS) discovered an exoplanet, which NASA defines as “any ...

Our solar system might seem like just another collection of planets, but the more we learn about exoplanets, planets orbiting ...

In 1979, scientists found the F-ring, which until then was an entire previously unknown ring of Saturn. Thanks to the Voyager ...

Astronomers have accidentally found a planet with a debris trail like a comet that stretches up to 5.5 million miles in space. This strange exoplanet, located 140 light-years away from Earth in ...

Astronomers have found that a weird space rock at the edge of the solar system is locked in a rhythmic dance with Neptune.

Scientists have perhaps discovered the weirdest planetary system ever seen. Not only does this system feature the first-ever "polar planet" to be discovered, meaning the world exists on a sideways ...

NASA explained that water once flowed on ancient Mars. The planet’s early water carried minerals that seeped into cracks.

Adding to the mystery, data from NASA's MESSENGER probe, which orbited Mercury between 2011 and 2015, revealed that the planet's surface is surprisingly rich in volatile elements, including ...

Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists. Most of the stars across the Milky Way are small red ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...