It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

This video shows the habitable zone around the star HD 20794 (in green) and the trajectory of the three planets in the system. Thirty years after the discovery of the first exoplanet, we detected more ...

"It would be amazing if a simple rotation of the universe was the origin of dark energy." What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse?

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...