Look up! Now is a great time to see Centaurus and his neighbors in the night sky

A beginner's guide to time travel

NASA’s Webb Telescope Will Look Back in Time, Use Quasars to Unlock the Secrets of the Early Universe

Satellite data from the polar-orbiting Sentinel-5P spacecraft allowed scientists to spot signs of volcanic eruption up to 40 minutes prior to the event —enough time to alert people nearby.