Launched without incident, but the James Webb Space Telescope still faces many challenges. In this video, we walk through the ...

Determining the expansion rate of the universe, the "Hubble constant," shapes our understanding of the cosmos, its age, and its fate.

New images show the rapidly rotating pulsar of the "Guitar Nebula" shooting out a gigantic cosmic plume of plasma, X-rays and ...

Brian Greene (Cosmic String Theory) and Astrophysicist Ethan Siegel have collaborated on a National Geographic coffee-table ...

An international team of astronomers has employed the James Webb Space Telescope (JWST) to observe a supermassive Galactic ...

What happens when the most advanced space telescope faces competition from the ground? The Extremely Large Telescope, built ...