Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

The beginning of two meteor showers associated with the constellation Taurus, the Southern Taurids and Northern Taurids is ...

The case for a newborn ocean on Saturn's moon Mimas continues to build.

Uranus' moon Ariel could have had liquid water 100 miles deep, hidden under its icy crust, possibly making it yet another ...

We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

Sky This Week is brought to you in part by Celestron. Friday, October 10The Moon passes 5° north of Uranus at 5 A.M. EDT. The ...

It was put on Webb to diagnose and measure any blur in its images. Even nanometres of distortion in Webb’s 18 hexagonal ...

"Complex chemical reactions" discovered in fresh ice grains from Saturn’s moon Enceladus renews hopes that it may harbor life ...

Looking for a sky event this week? Check out our full Sky This Week column. October 10: Spot Ceres in Cetus Last week, Io and Europa took a trip together across Jupiter, transiting the planet with ...