The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

Legend has it that somewhere beyond Neptune and Pluto, there is a ninth planet, with a mass that is five times greater than ...

Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...

A new paper calculated a solar storm could bring down the planet’s satellite system in just three days, wreaking havoc on ...

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

"Ultimately, this work may help scientists better predict the impact of space weather across the solar system on longer ...