"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a ...

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

Discovered over the summer, the comet known as 3I/Atlas will pass within 167 million miles (269 million kilometers) of our planet on Friday, the closest it gets on its grand tour of the solar system.

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

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

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

At a moment when solar farms are being built faster than grids can absorb their daytime peaks, a California startup is ...

What made 'The Expanse' Season 1 so great? Maybe not what you think. Here's why one character made the show nearly perfect.

If future missions confirm sustained heat flow at both poles, Enceladus would strengthen its position as one of the more accessible environments for detecting extraterrestrial life within the Solar ...

Science is the spice that keeps things nerdy. And nerdy, as our dedicated readers know, can be tons of fun. To help you out ...

This weekend's night sky will feature one of the best meteor showers of the year on Dec. 13-14. The Geminid meteor shower ...

While the Voyager spacecraft are constantly traveling out of the Solar System, sometimes they are getting closer to Earth.