astronomy

As the moon moved through the shadow of the Earth, it was also being illuminated by light from the sun — causing the moon to appear as if dipped in a deep red hue in a stunning celestial sight.

NASA’s Hubble Space Telescope has given us some extraordinary sights of the universe since it went up in 1990. The latest comes from some Yale researchers…

If the Milky Way galaxy were the size of the continental United States, Proxima Centauri, our nearest neighboring star, would be about one-tenth of a mile…

When you look at distant galaxies through a telescope, you're looking back in time as well as space because it takes light so long to travel that far. So…