Scientists report they finally have “good evidence” for Planet X, a true ninth planet on the fringes of our solar system.
The gas giant is thought to be almost as big as Neptune and orbiting billions of miles beyond Neptune’s path — distant enough to take 10,000 to 20,000 years to circle the sun.
This Planet 9, as the two California Institute of Technology researchers call it, hasn’t been spotted yet. They base their findings on mathematical and computer modeling, and anticipate its discovery via telescope within five years or less.
The two reported on their research Wednesday in the Astronomical Journal because they want people to help them look for it.
“We could have stayed quiet and quietly spent the next five years searching the skies ourselves and hoping to find it. But I would rather somebody find it sooner, than me find it later,” astronomer Mike Brown tells The Associated Press.
— AP
Is our live election coverage important to you?
Are you relying on The Times of Israel for accurate and timely coverage of the 2026 Israeli election? If so, please join The Times of Israel Community. For as little as $6/month, you will:
- Support our independent journalists who are working around the clock to report political developments as they unfold;
- Read ToI with a clear, ads-free experience on our site, apps and podcasts; and
- Gain access to exclusive content shared only with the ToI Community, including our DocuNation streaming film series and weekly letters from founding editor David Horovitz.
Join The Times of Israel Community
JOIN NOW
Already a member? Sign in to stop seeing this
You're a dedicated reader
We’re really pleased that you’ve read X Times of Israel articles in the past month.
That’s why we started the Times of Israel - to provide discerning readers like you with must-read coverage of Israel and the Jewish world.
So now we have a request. Unlike other news outlets, we haven’t put up a paywall. But as the journalism we do is costly, we invite readers for whom The Times of Israel has become important to help support our work by joining The Times of Israel Community.
For as little as $6 a month you can help support our quality journalism while enjoying The Times of Israel AD-FREE, as well as accessing exclusive content available only to Times of Israel Community members.
Thank you,
David Horovitz, Founding Editor of The Times of Israel
Join Our Community
Join Our Community
Already a member? Sign in to stop seeing this