For decades, Uranus has held the title of the coldest planet in the solar system, with atmospheric temperatures plunging to ...

You’d think we’d have the solar system pretty well figured out by now. It’s our own cosmic backyard, after all. […] ...

With China's advancing deep space exploration capabilities and critical progress in space-based nuclear power technology, the ...

Even today, this icy, ringed oddball continues to keep scientists guessing. Uranus spins sideways, so each pole gets blasted ...

This week, momentum is building around nuclear fusion, as tech investment and breakthroughs suggest it may arrive sooner than ...

The James Webb Space Telescope (JWST) has helped provide a snapshot of the formation of a planetary system around a young star for the first time, according to astroboffins.

The world's most powerful telescopes, including the James Webb Space Telescope and FAST, are revolutionizing our ...

Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an incredibly fast speed, averaging nearly 106,000 miles per hour. These are just a ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...