Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity ...

Parker Solar Probe Makes History by Touching the Sun 8 million miles above the Sun's surface on December 24, 2024, traveling ...

Voyager 1 and 2 traveled billions of miles to reach the heliopause, showing how the Sun's magnetic influence marks the ...

First up, just pointing a rocket at the Sun and blasting as hard as you can would result in a wild miss. The main problem you ...

NASA images show asteroid 2025 OW spinning at extreme speed, improving its orbit forecast and revealing surface details only ...

Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...