For over a century, researchers have been puzzled by strange gravitational forces seemingly pulling on the orbits of Neptune and Uranus in the distant reaches of our solar system. While some have ...

Extra-solar planets are among the most thrilling discoveries of our age. Just today, scientists using Spitzer space telescope data announced the first detection of infrared light from an extra-solar ...

Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but got kicked out long ago! This "lost" planet could have been tossed into deep ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Planet Nine is a hypothesized massive planet, first proposed in 2014, that is speculated to orbit ...

Scientists at the European Southern Observatory have discovered 32 new planets outside the solar system, supporting the theory that planet formation is common. It also provides more evidence that ...

Scientists may have glimpsed the elusive and mysterious Planet Nine — that is, if it actually exists — back in 1983. That’s according to Michael Rowan-Robinson, an astronomer at the Imperial College ...

Within our solar system, an extra giant planet, or possibly two, might once have accompanied Jupiter, Saturn, Neptune and Uranus. Computer models showing how our solar system formed suggested the ...

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Our solar system could be hiding an extra planet in its outermost reaches. It is possible that a giant planet lurks in the Oort cloud, which begins hundreds of billions of kilometres beyond Pluto and ...

British astronomers, together with Australian and American colleagues, have used the 3.9m Anglo-Australian Telescope [AAT] in New South Wales, Australia to discover a new planet outside our Solar ...

This week, astronomers announced the discovery of a Jupiter-sized planet one hundred light years away. It's the one-hundredth planet found outside of our solar system. In this hour, we'll hear the ...