There are eight planets in our solar system – plus poor old Pluto, which was demoted in 2006 – but what if there were more? Turns out that might be the case. Astronomers have calculated there is a 7 per cent chance that Earth has another neighbour hiding in the Oort cloud, a spherical region of ice chunks and rocks that is tens of thousands of times farther from the sun than we are. “It’s completely plausible for our solar system to have captured such an Oort cloud planet,” said Nathan Kaib, a co-author on the work and an astronomer at the Planetary Science Institute. Sign up to our free Indy100 weekly newsletter Hidden worlds like this are “a class of planets that should definitely exist but have received relatively little attention” until now, he said.. If a planet is hiding in the Oort cloud, it’s almost certainly an ice giant. Large planets like Jupiter and Saturn are generally born as twins. They have huge gravitational pulls of their own, however, and sometimes destabilise one another. That could have led to a planet to be nudged out of the solar system entirely – or exiled to its outer reaches, where the Oort cloud resides. “The survivor planets have eccentric orbits, which are like the scars from their violent pasts,” said lead author Sean Raymond, researcher at the University of Bordeaux’s Astrophysics Laboratory. That means that the Oort cloud planet could have a significantly elongated orbit, unlike the near-perfect circle Earth tracks around the sun. Trouble is, when things are that far away, they’re pretty difficult to spot. “It would be extremely hard to detect,” added Raymond. “If a Neptune-sized planet existed in our own Oort cloud, there’s a good chance that we wouldn’t have found it yet,” said Malena Rice, an astronomer at MIT not involved in this work. “Amazingly, it can sometimes be easier to spot planets hundreds of light-years away than those right in our own backyard.” Time to crack out the telescope. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Those fleeing Afghanistan as the Taliban swept back into power two years ago included university students

NEW YORK--(BUSINESS WIRE)--May 22, 2023--

TL;DR: As of July 30, you can get two pairs of Flux 7 TWS Earbuds

Enjoy these Five Nights at Freddy's Black Friday Deals!

Comcast Corp. Chief Executive Officer Brian Roberts has a penchant for lining up a huge deal around every

Pokimane, famous Twitch streamer adderessed assumptions about her sexuality during one of her live streams

Apple Inc. reported disappointing third-quarter sales of the iPhone, its flagship product, overshadowing growing services sales at the

SAN JOSE, Calif. & LONDON--(BUSINESS WIRE)--Jun 7, 2023--

Jack Sweeney, the creator of an account tracking Elon Musk's private jet in real time, has moved to

SUWANEE, Ga.--(BUSINESS WIRE)--Jun 22, 2023--

Over the year, it's become commonplace for Google to shutdown one of its many products