For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

NASA has revealed its top skywatching tips for May, and they include a meteor shower, lots of planets, and possibly a nova.

Scientists using JWST have identified WD 1856+534 b—the coldest exoplanet yet—circling a dead star, revealing surprising ...

The James Webb Space Telescope has identified WD 1856b, the coldest exoplanet ever observed, orbiting a white dwarf star.

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

Using the James Webb Space Telescope (JWST), scientists have found the coldest exoplanet that is orbiting a dead star, also ...

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

As seductive Pluto turns retrograde in Aquarius from May 4 to October 13, distance from the digital realm might be the most ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new ...