Rocky planets like our Earth may be far more common than previously thought, according to new research published in the journal Science Advances. It suggests that when our solar system formed, a ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

A dead satellite can become a high-speed hazard in an orbit that is already packed with working spacecraft. That risk is why ...

Long-term satellite measurements show that Earth’s magnetic field is changing faster and more unevenly than expected, driven by dynamic processes deep within the planet’s core. Drawing on 11 years of ...

Eco anxiety is very real, so we share this year's most uplifting stories to prove there’s hope for our climate.

Largest Planet in the Solar System: Jupiter is the largest planet in the solar system. It is the biggest in diameter, mass, and volume, and it is so large that all the other planets could fit inside ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

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 ...