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Greenhouse gases, sea level rise, and ocean acidification all broke records in 2021
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Russian Bluster Aside, What Will Become Of The ISS?
Russia's recent threat to leave the space station by 2020 was in fact the original plan.
Inside Astronaut Boot Camp
What does it take to prep humans for a trip to an asteroid or a martian moon? Starvation? Isolation? Recycling feces for food? NASA's newest astronauts begin a grueling training regimen this fall to find out
NASA Panel Submits Its Big Plan For Future of Human Space Flight
At last, the rumors can stop flying. Unfortunately, they're not alone in that
NASA Panel To Recommend Manned MIssions To Asteroids, Venus Fly-Bys
Some people may think locking some volunteers in a tin can for a couple of months is enough preparation for...
The Daring Visionaires of Fringe Aviation
Will one of these aeronautical mavericks redefine personal flight? Probably not, but you can't blame them for trying.
Around the World in 80 Hours
Adventurers Steve Fossett and Richard Branson—with a little help from design genius Burt Rutan—build an airplane for what they're calling the last great aviation record: a solo, nonstop around-the-world flight.