In 2015, two astronomers from Caltech presented evidence that six objects past the orbit of Neptune were bunched ... better than in simulations where planet 9 was not included.

In 2015, a pair of astronomers at Caltech found several objects bunched together beyond Neptune's orbit ... from an unknown ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

John Strachan won't stop traveling, even though he died in 2023. Thanks to his wife, the former Bremerton resident, known by ...

Others orbit backwards. And still others orbit perpendicular ... In fact, they even went so far to give it a name, Planet 9. Now, of course, if they were to confirm this discovery, it would ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

This is a distinction created by humans to break up all the ways an object might orbit our planet. How it's defined ... vehicles like the SpaceX Falcon 9 can land after sending a payload off ...