Hearts Weaken, Shrink And Become Spherical In Space

A new study of a dozen NASA astronauts has found that exposure to microgravity causes hearts to become more spherical in shape — a change that could lead to serious cardiac problems while in space and back on Earth. » 3/31/14 9:40am 3/31/14 9:40am

Going into space accelerates the aging process

As if astronauts didn't already have enough health-related concerns to be worried about, a new study shows that microgravity environments speed up biological aging and the onset of cardiovascular disease by affecting blood vessel cells. » 11/01/13 1:20pm 11/01/13 1:20pm

How to drink coffee in space without burning your face off

Zero gravity is all fine and well — but not being able to grab a cup of joe in the morning would be a huge dealbreaker for many prospective astronauts. Thankfully, NASA has a solution to the problem. » 7/15/13 7:20am 7/15/13 7:20am

This is what happens when you play with fire in space

The simple flame is an extraordinarily complex phenomenon, one that involves thousands of chemical reactions. But fire also plays off the effects of gravity. So what happens when you take that gravity away? As a recent experiment aboard the ISS has shown, you get a very strange flame, indeed. » 6/19/13 7:40am 6/19/13 7:40am

Long space journeys could wreck your eyeballs... and brain

Fresh off the news that microgravity screws us up on a cellular level comes word that it also damages our eyes and brain. Researchers from the University of Texas, Wyle Integrated Science and Engineering, and NASA's Department of Space Medicine performed MRIs on 27 astronauts who had spent an average of 108 days in… » 3/16/12 7:40am 3/16/12 7:40am

Microgravity screws us up at a cellular level

One of the great fears of the early space race was what effect microgravity would have on human explorers — and while we know it won't instantly die when leaving the atmosphere, there's still a lot we don't know about the long term effects of low gravity. If we ever want to set up a long-term space settlement, it'd be… » 2/02/12 3:00pm 2/02/12 3:00pm

Fruit flies become slightly superpowered in zero gravity

Fruit flies were the very first animals we sent into space, way back in 1947 — yet we're still not done analyzing what happens to them in microgravity. We've known for a while that when in "zero-gravity," flies walk more quickly than they do planetside. The only problem is that we don't know if this is due to the whole… » 1/04/12 10:53am 1/04/12 10:53am