Astronomers using observations from NASA’s trusty Hubble Space Telescope have detected a distant exoplanet with an extreme orbit. The planet, called HD 106906, has a highly elliptical orbit that sends it far away from its stars every time it completes a trip.
We all grew up thinking there were nine planets in our solar system. Pluto got demoted, leaving just eight official planets, but in recent years some scientists have begun to believe that there is indeed a ninth big planet hanging out on the edges of the solar system, beyond our limits of detection. It’s a theory that is supported by observations of smaller objects in the asteroid belt past Neptune, but nobody has actually seen this lost world.
