Six Colors
Six Colors

by Jason Snell & Dan Moren

This Week's Sponsor

Save 20% on the award-winning Audio Hijack with coupon code 6C20AH!

By Jason Snell for

This Week in Space: Planet X, SpaceX, and Japan’s Wayward Mission to Venus

The unlikely dream of a large “Planet X” at the far reaches of the solar system — the same dream that motivated Clyde Tombaugh to find Pluto 100 years ago — is still alive. Scientists scanning the icy belts of material way beyond Pluto keep looking for signs that those distant objects are being influenced by a larger object.

Astronomers have already ruled out finding Jupiter- or Saturn-sized planets in the extreme reaches of the solar system. But finding even an Earth-sized body would be a dramatic moment that would change our understanding of the solar system forever.

Continue reading on ↦


Search Six Colors