Stargazers can tune in to the Virtual Telescope Project's YouTube stream beginning at 11 p.m. EDT on Sept. 17 (3:00 GMT Sept.

A skyscraper-size asteroid named 2025 FA22 will make a close approach to Earth this week, and you can watch it happen live ...

A planetary scientist walks through the sensors and systems that went into the recent detection of potential biosignatures.

By capturing the same thing from very different perspectives, a NASA astronaut and an intrepid photographer create a whole ...