Astronomers have spotted a large and mysterious dark spot within Neptune’s atmosphere, and it has an unexpectedly bright companion. The observation was made using the European Southern Observatory’s ...

This image shows Neptune observed with the MUSE instrument at ESO’s Very Large Telescope. At each pixel within Neptune, MUSE splits the incoming light into its constituent colors or wavelengths. The ...

While the most famous planetary spot in the solar system would have to be Jupiter’s Great Red Spot, an epic storm 10,000 miles wide that has been raging for hundreds of years, other planets are known ...

Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have spotted a large and ...