Imagine a star so dense that a teaspoon of its material would weigh as much as Mount Everest, spinning hundreds of times per second while beaming radio waves across the

Arsia Mons, one of the Red Planet’s largest volcanoes, peeks through a blanket of water ice clouds in this image captured by NASA’s 2001 Mars Odyssey orbiter on May 2,

A laser navigating tool doomed a Japanese company’s lunar lander earlier this month, causing it to crash into the moon.

Iron is one of the most abundant heavy elements in the universe. Its spectral features stand out in many astronomical spectra, especially in those of stars and galaxies. As a

If a huge asteroid smashes into the moon in 2032, the gigantic explosion would send debris streaming toward Earth that would threaten satellites and create a spectacular meteor shower, according