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May 21, 2022 9:00 AM
Steelmaking is a major source of emissions. These companies are racing to fix it.
May 20, 2022 6:00 PM
Featured in space travel
Jul 12, 2021
Why the Virgin Galactic spaceship didn’t reach orbit last weekend
It's like throwing a baseball really, really far through the atmosphere.
Mar 30, 2021
Spending time in space could shrink your heart
Zero-gravity affects organ fitness—what does that mean for future space missions?
Mar 18, 2021
What did ’90s NASA astronauts pack for space?
There’s no punchline, unless you count the homemade jelly.
Jul 18, 2020
For astronauts in space, play is a way to stay safe
Keeping shuttle residents entertained is a serious business.
Jul 01, 2020
Virgin Galactic’s latest test flight puts it one step closer to commercial space travel
The company plans to operate rocket-powered flights out of New Mexico.
Feb 24, 2020
Here are all the ways to visit space this decade (if you’re extremely rich)
Glamping in zero gravity will cost a few millions bucks at least.
Feb 18, 2020
These lunar rover tires mimic camel hooves for maximum traction on the moon
Bridgestone’s concept moon tires won’t go flat.
Feb 17, 2020
The sustainable voyager’s guide to the galaxy
Understanding how aliens might travel helps us know where to look for life.
Oct 25, 2019
There’s a chance the black hole at the center of our galaxy is actually a wormhole
The odds are slim, but a new analysis shows it’s possible.
Jun 21, 2019
How the ISS recycles its air and water
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
