What's the Minimum Number of People for a Generational Ship to Proxima Centauri?

The Giant Planets in the Solar System Stunted the Growth of Mars

ESA's ExoMars has completed its aerobraking maneuvers and has now entered a circular 400 km orbit around Mars!

Scientist Find Treasure Trove of Giant Black Hole Pairs

Breakthrough detects repeating fast radio bursts coming from distant galaxy

Cosmic Census Says There Could be 100 Million Black Holes in our Galaxy Alone

Breakthrough Listen publishes first analysis of 692 stars in ET search

Astronomers have found a tiny number of stars, very similar to our own Sun, that seem to be the source of pulsed signals.

"A team of European astronomers has discovered a second solar system, the closest parallel to our own solar system yet found

Who Was Galileo Galilei?