Sarah Fecht
at 15:39 PM May 24 2017
Space // 

If humankind ever sets up a colony on Mars, a lot of things will be different. There'll be less gravity, less oxygen, and more death if you go outside without a spacesuit. But at least one thing might remain the same: if we bring mice to Mars with us, we'll probably still have mouse infestations.

By: Leland Melvin
at 15:39 PM May 24 2017

On my first day of spacewalk training in NASA's Neutral Buoyancy Laboratory at the Johnson Space Center, the future loomed in front of me as bright as the heavens I had hoped to reach. I wanted to master the fundamentals and, like all astronauts, I knew that spacewalk proficiency was the quickest path to that coveted first flight assignment.

Sarah Fecht
at 10:42 AM May 22 2017
Space // 

Rocket Lab's Electron rocket is only 55 feet tall. That's puny compared to SpaceX's 230-foot Falcon 9, but size isn't everything. The Electron could become a powerful system for putting small satellites into space for cheap—the company estimates each launch will cost $5 million compared to SpaceX's (already very cheap) $60 million. And on Sunday, it may fly for the very first time.

Sarah Fecht
at 10:42 AM May 22 2017

In late 2015, astronomers noticed something absurd happening around a distant star. Something massive seemed to be blocking as much as 20 percent of the star's light.

Mary Beth Griggs
at 11:07 AM May 11 2017
Space // 

Lava lakes on Earth are vast cauldrons of molten rock that you should definitely not throw your trash into. (PSA: You should also not jump into a lava lake. You would die.)

Sara Chodosh
at 11:06 AM May 11 2017
Space // 

It's summer in the northern hemisphere, and you know what that means: clouds of methane. Temperatures will soar to a balmy -292°F, a full six degrees warmer than the south pole, and lakes will swell with hydrocarbon rain. Welcome to summer on Titan. You better like it, because it'll last 7.5 years.

Sarah Fecht
at 08:48 AM May 5 2017
Space // 

Last week, the Cassini spacecraft made its first dive through the gap between Saturn and its rings. It sent home some pretty spectacular pictures, and now NASA has stitched them together into a video. Behold:

 
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