When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally published at The Conversation. The publication contributed the ...

The International Space Station is humanity’s most expensive gym membership. Since the earliest days of human spaceflight, it’s been understood that longer trips away from Earth’s gravity can have a ...

In the zero-gravity airplanes or vomit comet, why does stuff behave like there is no gravity when it is just falling? – Austin B., 11, Scranton, Pennsylvania I have flown many times in zero-gravity ...

There's nothing like a nasty cold to make you appreciate good health. The same goes for the state of the universe: Tweaking just one of the fundamental physical laws or constants, normally perfectly ...