A Russian satellite caught shadowing a US spy satellite launched a mysterious space weapon

The Russian satellite launched a mysterious projectile during the test, which mimicked a...

Earth's magnetic field is weakening, and that could cause satellite problems

The magnetic field has weakened 9% over the last 200 years. A weak spot in the southern...

Stunning images from space reveal the shocking extent of Australia's bushfire crisis

Australia's fires have lasted for months, burned millions of acres, and belched out a...

Satellite collisions may set off a space-junk disaster that could end human access to space. Here's how.

Experts worry that debris orbiting Earth could lead to a "Kessler syndrome" domino effect...

The European Space Agency says it dodged a SpaceX satellite because the company wouldn't move it out of the way. Buggy software may be to blame.

Satellite collision warnings are rare but not unprecedented, and there's no official rule...

SpaceX lost contact with 3 of the Starlink internet satellites it launched in May, but the company seems pleased with its first batch overall

SpaceX just revealed new details about the internet-providing satellites the company...

Watch: Elon Musk's company has just launched 60 satellites that can provide most of the Earth with high-speed internet access

It's the first of 12,000 internet-providing Starlink satellites.

Elon Musk just trolled Jeff Bezos on Twitter, and it could reignite a years-old feud between the billionaires

Elon Musk's tweet responded to Amazon's plans to launch thousands of satellites that...