Bad news would-be astronauts: Traveling into deep space could be bad for your heart.
In a study published Thursday in Scientific Reports, researchers found that astronauts who went to the moon were almost five times more likely to die of cardiovascular disease than astronauts who remained in low-Earth...
"It's as simple as riding a bicycle" is a common expression. But the science of staying upright on two wheels is anything except simple — and we know surprisingly little about the intricacies of how cycling actually works, says CBC Radio science columnist Torah Kachur.
"I have no idea. I can't even hazard a guess to phylum," one scientist says. The curious orb was found and captured during a recent Nautilus expedition near California's Channel Islands.
Facebook's Messenger app hit an important milestone this week, with one billion users now connected through the service.