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

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

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

This is the story of our cosmic neighborhood's front row. We explore the four rocky planets forged in the sun's heat: ...

Carl Sagan famously said that "We're all made of star stuff." But he didn't elaborate on how that actually happened. Yes, ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

The world's most expensive infrared spectrometer - the James Webb Space Telescope - is unearthing extraordinary exoplanet ...

The ice giant classification is oversimplified as Uranus and Neptune are still poorly understood,' said experts.

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

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

We know Jupiter is the largest planet in our solar system, but we rarely observed or heard about ‘Hot Jupiter’, that are ...