The Hubble Space Telescope has reached the jaw-dropping milestone of discovering more than 6,000 new worlds. The joint NASA / ...

What can rocky planets orbiting in the outer parts of a solar system teach scientists about planetary formation and evolution? This is what a recent study published in Science hopes to address as a ...

It's true, though: outer space does have a smell, or rather, many smells. The cosmos isn't sterile or empty, after all. It's ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

There may be a warp in the Kuiper Belt, possibly caused by “Planet Y” — a Mercury-to-Earth-sized world that orbits the sun way beyond the orbit of Neptune. Is there a mysterious “Planet Y” orbiting ...

"Rather than 'icy' or 'rocky,' we should simply call them minor giants." ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Credit: Kamalika Chakraborty A bizarre pair of planets 190 light-years away is forcing astronomers to rethink how planetary ...

Astronomy Hubble revisits stunning Trifid Nebula after 30 years, and spots a growing jet of energy — Space photo of the week Astronomy The night sky could get three times brighter as new satellites ...

US technology company L3Harris Technologies announced it has finalised the design of a next-generation nuclear-based power ...