There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...

The Planet Nine theory was based on several trans-Neptunian objects, those that are beyond the eighth planet, with highly “tilted” orbits compared to the ecliptic plane. This seemed odd and ...

Mercury, the closest planet to the Sun (and all the other planets), will not make the show in its current position behind the Sun, while you won't see the eighth planet because you're standing on it.

The planet was named after the Greek god of the sky, Uranus. The eighth planet in our solar system, Neptune is the farthest planet from the sun, more than 30 times farther away than Earth.

Uranus is not too far away from the Pleiades,” they wrote. Neptune is the eighth planet outward from the sun, and it’s even dimmer than Uranus. “But it’s near some other bright objects now ...

Here’s everything you need to know to see a rare conjunction of Venus and the Pleiades with your naked eyes as the bright planet becomes the “Eighth Sister:” When is the conjunction of Venus ...

Help the Blue Peter space crew overcome the perils of space to make it to the eighth planet, and maybe learn some new facts on the way! BBC Homepage Skip to content ...