… on Neptune, that is.

The Giant’s Causeway in Ireland is made up of more than 40,000 interlocking hexagonal basalt crystals.

From the awesome Bill Nye:

Mira (pronounced “my-rah”) is a red giant star over 400 light-years away in the constellation of Cetus. NASA’s Galaxy Evolution Explorer probe recently took the amazing ultraviolet picture below:

Over the last 30,000 years Mira has been throwing off layers of stellar material as it runs out of fuel, creating a tail thirteen light-years long. That’s a tail more than 76,000,000,000,000 miles long!

NASA Press Release

This is the coolest thing you’ll see today.