Galaxies are massive and beautiful islands of stars. But did you know that most galaxies are surrounded by halos? A complex instrument on the Very Large Telescope is giving astronomers new views of these galactic rings of light.

"This is the big breakthrough that the field has been waiting for since astronomers discovered fast radio bursts in 2007," one team member said.

The Earth-sized exoplanets orbiting Teegarden's Star are 2 of the closest yet found, and at least 1 of them may be potentially habitable.

DART stands for Double Asteroid Redirection Test. The DART mission is planned for launch in 2021. It'll visit a double asteroid - Didymos and its tiny moon - and crash into the moon in an attempt to change its orbit.

Following NASA's DART mission, if all goes as planned, an European Space Agency mission called Hera will also visit Didymos and its moon, to gather vital, detailed information. Watch a video, where astrophysicist and Queen guitarist Brian May explains more.

Want to spend your days looking at awesome photos of distant galaxy clusters, and possibly discovering an asteroid? Check out this new citizen-science project called Hubble Asteroid Hunter.

Scientists have been trying to figure out how clouds form in Mars' thin atmosphere, and thanks to new research, the answer seems to be ... meteors.

Textures and patterns, from clumpy to straw-like, pop out of these images from the Cassini mission. "It’s like turning the power up a notch on what we could see in the rings," said a scientist.

Last week, the Mars Curiosity rover detected its largest-yet measurement of methane. It's exciting because microbial life is an important methane source on Earth (though methane can also be created in other ways).

Asteroid 2019 MO exploded in our atmosphere with an energy of about 3 to 5 kilotons of TNT. Such events happen once or twice yearly, astronomers say. Most are unexpected, but this space rock was detected hours before it struck.