There are about 15,000 satellites orbiting the Earth. Most of them, like the International Space Station and the Hubble ...

The International Space Station is seen from the space shuttle Atlantis on July 19, 2011, after it left the orbiting complex.

But first, a bit of space telescope history. One of the most powerful space-based telescopes to be launched into the Earth’s ...

A new study looked at how the telescope would be ending its journey, and the moment might be disastrous for Earth, with a ...

NASA says a crew member on the International Space Station is unwell. The agency canceled a planned spacewalk for Thursday ...

Sven Bilén founder and co-owner of Victoria Defense, which seeks to commercialize VLEO and other space technologies. He receives funding from DARPA and NASA related to VLEO technologies. Which is why ...

Space shuttle Atlantis landed Sunday at Edwards Air Force Base after rainy weather in Florida precluded a landing at Kennedy Space Center. The shuttle touched down at 8:39 a.m. PT at Edwards, about ...

The weird and wonderful world of sleeping in space — and what studies of astronauts tell us about the future of sleep ...

Which is why it’s fortunate there’s another orbit, even closer to Earth, that promises to help alleviate the crowding. It’s ...

Mission Updates and Discoveries. It’s been a busy time at NASA, with a lot of exciting things happening across different ...

After more than five months in space, four astronauts on a mission known as Crew-11 are about to cut their mission short and ...

Astronauts on the International Space Station were not only treated to a sight from Earth's atmosphere recently but also ...