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

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.

Thea Energy says that its planar-coil fusion power plant could be cheaper and easier to build thanks to AI-powered control ...

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

In this animated discussion, Venus, Mars, and Mercury explore the unique characteristics of Earth, focusing on why it is the ...

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

Welcome to SolarBalls! Enjoy fun and entertaining space animations that help you learn about the solar system and the ...

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