Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

Many protoplanetary disks in which new planets are formed are much smaller than thought. Using the Atacama Large ...

If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's second-largest moon has more impact craters on its surface than any other planetary ...

The findings, ratified on Tuesday by the International Astronomical Union, come after a decades-long battle to confirm which ...

Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago ...

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a ...

Seven planets — Mercury, Mars, Jupiter, Uranus ... as the planets will soon shift positions. For all the biggest celestial events of 2025, check out our comprehensive astronomical calendar ...

Photoshop CS5 tutorial showing how to create a gaseous planet like Jupiter floating in deep space.