Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside ...

Some 200 light years from Earth, the core of a dead star is circling a larger star in a macabre cosmic dance. The dead star ...

On November 21, Uranus will appear the brightest this year, as it enters apposition, or opposition. The term "opposition" in ...

Designed with the latest technology for New Space and leveraging Frontgrade learnings from heritage systems, the SADA-10 combines flight-proven reliability with optimized size, weight, power, and cost ...

A newly discovered cluster of objects called the “inner kernel” of the Kuiper belt could teach us about the early history of ...

For lovers of astronomy Saturn’s “disappearing rings” on Sunday will be a rare and fascinating event but for believers in ...

For lovers of astronomy Saturn’s “disappearing rings” on Sunday will be a rare and fascinating event but for believers in ...

Solar flares pose an astonishing danger to life on Earth — and many questions about them still remain unanswered.

Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...