A Soviet-era spacecraft meant to land on Venus in the 1970s is expected to soon plunge uncontrolled back to Earth.

NASA launched the Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer, or OSIRIS-REx, mission on Sept. 8, 2016. It traveled to Bennu, a near-Earth asteroid, and ...

From discarded spacecraft bolts to defunct satellites, millions of pieces of space debris are beginning to pose a larger ...

Flares from a supermagnetized star may have generated as much as 10 percent of our galaxy’s heavy elements.

Let's break down the Thunderbolts post-credits scenes, with one setting the stage for what's to come in the next chapter of the Marvel Cinematic Universe.