As Hubble Celebrates 25 Years, Here's Another Stunning Photo From Space

We showed you some of the Hubble Space Telescope’s most memorable images earlier this week, gathered in honor of the telescope’s 25th year in space. Here’s another favorite from the vaults, a shot of the “Eskimo” Nebula taken in 2000. Here’s what NASA had to say about the photo 15 years ago: » 4/25/15 5:00pm Yesterday 5:00pm

Astronomical Knolling Is The Prettiest Way To Organize Objects In Space

What happens when a planetary scientist has a love for order? He creates code that sorts everything from our solar system’s moons to exoplanets into graceful spirals where every object is slightly smaller than the one before. Astronomical knolling is my new favourite way to contemplate the vast scale of space. » 4/18/15 5:30pm 4/18/15 5:30pm

This Elevation Map Of Mars Makes The Red Planet Much More Colorful

In this brand new map of the Ares Vallis region of Mars, released by the German space agency DLR, you can see the true differences in height between the high and low parts of our neighboring planet. The highest parts, expressed in red, are about 4000 meters (2.4 miles) above the lowest parts, in blue. » 4/14/15 6:30pm 4/14/15 6:30pm

This Image Is Why Everyone's So Excited About A NASA Mission To Europa

NASA wants to visit Jupiter's moon Europa. Why's that exciting? In a word: Water. As this visualization shows, the icy moon may look tiny next to our own planet, but it's got 2- to 3-times as much H2O as we have here on Earth. That "little" moon is packing quite the store of water — and with it, scientists think, a… » 4/08/15 12:00pm 4/08/15 12:00pm

A Cosmic Ring That Appeared Out of Nowhere

The Herschel Space Observatory managed to get a picture of a cosmic ring in the huge cloud of gas and dust called NGC 7538. Normally, rings like this are caused by the winds of O-type stars or by their supernovae. But there's no O-type star remnant at the center of this ring. Did a star blow this bubble and then move… » 4/06/15 1:30am 4/06/15 1:30am