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solar system

Goodbye to Cassini

By Dr. Lisa Will, Resident Astronomer at the Fleet Science Center.

Evidence for a Ninth Planet

The six most distant objects in the solar system (magenta) all mysteriously align. Planet Nine, if it had 10 times Earth’s gravity and an anti-aligned orbit to these distant objects (orange), would explain these paths almost perfectly. (Image: Caltech)

By Dr. Lisa Will, Resident Astronomer at the Reuben H. Fleet Science Center

You may have heard that there is evidence of a possible new ninth planet in our solar system, but what exactly does that mean? What evidence was found?

Connect With NASA

Space: by NASA

There are a ton of ways you can connect with NASA—from taking spacey selfies to helping scientists search for black holes—and all you need to get started is an Internet connection!  

Not really into selfies? You’ll definitely start snapping breathtaking selfies by using the Spacecraft 3D augmented reality app! Select the target image and take your photo with the spacecraft of your choice. http://www.jpl.nasa.gov/apps/