Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

Polygon has rounded up the best icy sci-fi planets from our favorite video games, movies, television, and books ...

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune will be visible after sunset on February 28. Find out how to watch this rare event.

In “Citizen Science in Astronomy (Part 7),” SETI Institute astronomers Dr. Franck Marchis and Dr. Lauren Sgro highlight two rare and compelling discoveries and the crucial role of citizen scientists ...