ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

At last count, Jupiter has 95 moons, but the four main ones — Ganymede, Callisto, Io and Europa — were discovered in 1610 by famed Italian astronomer Galileo Galilei.

Exoplanet HIP 67522 b, fluffed up to the size of Jupiter, circles so close to its star that it’s triggering violent flares — ...

NASA has discovered the third known interstellar object to pass through our solar system, but the icy snowball object poses ...

The paper’s author, Michael Efroimsky, a US Naval Observatory astronomer, calculated that this area, and the volcanos, would ...