Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky this week.

There is no other moon quite like our own in the entire solar system. The Moon is unique in a lot of ways, some of which are ...

We haven’t yet figured out what gives them their shape, determines their altitude – or makes them rain when they do. What’s ...

Uranus just added 28 seconds to its day, rewriting what we thought we knew. Thanks to auroras and Hubble data, science is ...

The first four humans to orbit Earth’s poles are sharing their experiences from their historic mission. In a discussion with ...

For instance, the Hubble Space Telescope entered safe mode relatively recently as scientists worked on remedying some ...

An instrument aboard the Vikram lander suggests that buried water ice could be found at higher latitudes, making it more ...

NASA’s Juno spacecraft entered safe mode twice during a recent close pass of Jupiter, temporarily halting science operations. While safe mode is a normal precaution when anomalies are detected, the ...

The U.S. government has an official plan for a zombie apocalypse Think The Walking Dead is straight-up fiction? Well, it ...