It was a freezing Sunday afternoon in the middle of Sundance as I stepped out of my Old Town apartment to wait for an Uber. I’d normally take the bus or walk if I were heading to Main Street. But this ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and Callisto (in that order). Credit: Space.com | footage credit: ESA/DLR/FU Berlin ...

Much Colder, Gusty Saturday ...

By combining data from NASA’s IRAS and NuSTAR telescopes, scientists have uncovered more hidden supermassive black holes than earlier estimates suggested. Their findings indicate that over a third of ...

Mysterious little red dots threatened to overhaul modern cosmology—but new research may have solved the celestial conundrum.

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic center.