Nearly half of all known objects currently orbiting Earth technically classify as space junk, but the true amount may be even ...

The International Space Station has been in orbit for more than 25 years. Here's how to regularly spot the outpost from Earth ...

Star Catcher just raised $65 million to build a network of power-beaming satellites, which the Florida company thinks will ...

While the mission's four astronauts sent a few photos to Earth while in space, most needed to be delivered via physical ...

Solar emissions exert 'drag' on space junk orbiting Earth. From historical measurements across a period of 36 years, ...

There is something quietly powerful about seeing Earth from deep space. It feels distant, almost unreal, like looking at a ...

A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets ...

The European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) have signed a Memorandum of Cooperation to ...

A nearby “super-Earth” is giving scientists a rare look at the bare surface of a distant world, and it’s far from Earth-like.

From navigation to solar weather forecasting, many different areas of research require space-based sensors to measure Earth's ...

NASA astronaut Jessica Meir captured a giant “monster thundercloud” flashing with lightning from the ISS. Here’s the science ...