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 ...

2015 TG387’s orbit is observed to be similar to other ... This can be an indicator of a larger object further out, such as “Planet 9/Planet X” shepherding these bodies, though the discovery ...

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 ...

The potential discovery of a large planet beyond Neptune’s orbit could change everything we know about the Solar System.

Jupiter as seen by NASA’s Juno spacecraft on April 8, 2023 during its 50th orbit of the giant ... [+] planet. Processing by citizen scientist Brian Swift. NASA’s $1.1 billion Juno spacecraft ...