While US officials are worried about Russian anti-satellite weapons, or ASATs, the behavior of Russia's Nivelir satellites is puzzling. It's clear that Russia is deliberately launching these ...

As more companies take part in reshaping the space launch industry, ideas that once seemed impossible—like flinging satellites into orbit without fuel—are becoming real.

The number of satellites orbiting Earth is rising fast, thanks to private companies such as SpaceX. But just how big will these "megaconstellations" become? And what problems might they cause?

Satellites are launched using rockets that fly above most of the atmosphere in a curved path around Earth. When the rocket gets to a specific distance from Earth, it will release the satellite.

Russia launched three secretive satellites into orbit earlier this year, and they appear to have recently released a mysterious object. The satellites’ unusual maneuvers have reignited concerns ...

With Project Daedalus, the Pentagon's R&D wing is interested in satellites that can orbit in a much lower place than others. Here's why.

However, these mysterious Russian satellites are causing a lot of concern at the moment as they break up in low-Earth orbit, creating fields of debris in their orbital path.

A Boeing-built satellite has collapsed in orbit. The satellite, which is officially known as Intelsat 33e, is just one of many that Intelsat uses to power communications around the world.

The Boeing-made Intelsat 33e satellite broke apart in orbit over the weekend. But company representatives don't yet know why.