The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's ...

"By studying these planets, we can better understand how planets form in general, a bit like peering into the past of our ...

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a ...

The James Webb Space Telescope has observed two large planets at different stages of infancy - one with an atmosphere ...

A planetary parade is a periodic event where multiple planetary bodies sharing a common star appear collectively to an ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Faculty of Physics, together with colleagues from Poland and other countries, have identified an exoplanet—a gas giant ...

Moving from the outer layer inward, the first layer is the corona — the outermost part of the sun’s atmosphere that is ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

“We also find an approximately 0.3 percent chance that Mars will be lost through collision or ejection and an approximately 0 ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...