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 ...

Earth has the perfect combination of a livable atmosphere and a protective magnetic field that prevents the Sun's harmful radiation and radioactive solar winds from damaging us, allowing us to live on ...

After less than a year in orbit, the Southwest Research Institute-built PUNCH spacecraft have made major accomplishments, ...

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

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

Our solar system didn't form by accident. This video explains the blueprint that created rocky worlds like Earth and Mars ...

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

After less than a year in orbit, the Southwest Research Institute-built PUNCH spacecraft have made major accomplishments, ...

Fastest Planet in Solar System: Mercury is the fastest planet in the solar system because it orbits the Sun at an incredible speed of about 47 km per second, completing one full revolution in just 88 ...

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