Neptune moved into Aries, kicking off a wild new chapter that will last until 2039. You may feel called to hit the gas on ...

The photo at left is an enhanced-color image of Neptune from the Hubble Space Telescope. At the right, that image is combined ...

The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

At the left, an enhanced-color image of Neptune from the ... and we expected to see the same on Neptune as we investigated the planet over the years with the best ground-based facilities available ...

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being ...

Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

At the left, an enhanced-color image of Neptune from NASA ... Astronomers have been searching for auroral activity on Neptune, the most distant planet from the sun, since NASA’s Voyager ...

It would take 120 years to travel to planet K2-18b at the speed of light. Here's how we know what could lie there.

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory.

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

On Earth, the colors differ depending on the type ... Because auroras occur where magnetic fields converge with a planet's atmosphere, Neptune's are far from its poles. "Neptune's aurora shines ...