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Another Way of Looking at Pluto

Data from the New Horizons mission have revised Pluto’s diameter to just 2370 kilometers across. That’s smaller than the moons Triton, Ganymede, Callisto, Io, Europa, and Titan, not to mention Earth’s own satellite. In more immediately relatable terms: Here’s what it would look like if someone plopped Pluto onto… » 7/22/15 2:26pm 7/22/15 2:26pm

"Light Echoes" Prove That This Neutron Star is Weirdly Like a Black Hole

Between rainbows, rings, and sharp, hard lines, it’s difficult to not clap my hands in glee while unpacking the levels of awesome crammed in this X-ray image of Circinus X-1. The beautiful bullseye light echoes hint this neutron star is farther, brighter, and more like a black hole than we thought. » 6/25/15 10:30pm 6/25/15 10:30pm

A Rare Glimpse Of Rapidly Pulsating Aurorae Over Iceland

Aurorae are rare. Pulsating aurorae, whose structures fade in and out of existence, are rarer, still. But rapidly pulsating aurorae, like that featured in this video by French astrophotographer Stéphane Vetter (previously), are among the least common of all. This footage is not a time-lapse; the colors in this video… » 6/11/15 11:16pm 6/11/15 11:16pm

The Possible Remains of a Volcanic Collapse on Mars

Near the middle of this photo from the High Resolution Stereo Camera on the European Space Agency’s Mars Express is the Siloe Patera. Siloe Patera lies in the Arabia Terra region of Mars, and measures 20 km by 40 km. Recent research suggests it could be the remains of a supervolcano. » 5/25/15 10:29am 5/25/15 10:29am

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. » 4/19/15 12:11am 4/19/15 12:11am

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 10:30pm 4/14/15 10:30pm

Start Your Weekend With The Hubble Space Telescope's Planetarium Clips

You may not own your own private planetarium — or if you do, can we come over to your house? But you can still experience a journey through the wonders of space, thanks to four new "fulldome" planetarium clips, released by the Hubble Space Telescope. They're available in 4K and 8K resolution. » 2/28/15 9:16am 2/28/15 9:16am

Black Hole Emits Ferocious Winds With the Energy of a Trillion Suns

A black hole and its galaxy are locked in a cosmic struggle, evolving in tandem and balancing each other's growth. In this artist's recreation, you can see cosmic winds howling out of supermassive black hole PDS 456. These winds are so strong that they prevent the galaxy from forming new stars. » 2/19/15 8:00pm 2/19/15 8:00pm