Find black holes while you’re on the bus

"With a large enough sample from your classifications, we can pick out black holes at different stages and build a better picture of their origins." - Radio Galaxy Zoo

Largest-ever true-color photo of the night sky

The photographer trekked 60,000 miles (100,000 km) across the western United States and South Africa to create this massive composite image.

New colorized images of asteroid Vesta

"No artist could paint something like that. Only nature can do this." - Astronomer Martin Hoffman

Milky Way galaxy has four arms again

A debate has been raging about whether our galaxy has four spiral arms, or two. A 12-year study of massive stars suggests that it has four.

Unseen exoplanet predicted, now confirmed

Perturbations in the orbit of Uranus let astronomers discover the planet Neptune in 1846. Now this same technique has been used to find a planet 1,000 light-years away.

Video: Touch down of China’s moon mission

The lander is named for the moon goddess of Chinese mythology. Its successful landing on Saturday made China the third nation ever to land on the moon.

Video: So long, Comet ISON

This video shows Comet ISON's complete perihelion passage on November 28, 2013. NASA scientists now confirm the comet is longer a comet.

The weird object near Saturn’s A ring

A member of the Cassini spacecraft's imaging team spied a mysterious object at edge of Saturn's A ring and named it Peggy.

Water vapor venting from Jupiter’s moon, Europa

If these plumes vent from Europa's subsurface water ocean, future scientists won't need to drill into Europa's icy crust to investigate the potential for life in that alien sea.

How to see Comet Lovejoy in December 2013

Around mid-December, Comet Lovejoy is near the famous Keystone asterism in the constellation Hercules. Photos and charts here.