Canadian Space Agency astronaut Chris Hadfield on the International Space Station in 2012. NASA

What happens to the brain in zero gravity?

New research has uncovered exactly what happens to the brain when astronauts are in space.
In this 2012 photo, grandmother Janet Kitheka, 63, collects her adopted “granddaughter” Lucy, 13, at the end of the school day in the yard of the Hot Courses Primary School, in the village of Nyumbani which caters to children who lost their parents to HIV, and grandparents who lost their children to HIV in Kenya. (AP Photo/Ben Curtis)

Aspirin could help reduce HIV infections in women

Research shows that Aspirin could reduce the number of HIV infections in women at high risk for HIV, such as Kenyan female sex workers.
While media portrayals of online sperm donation often portray “rogue breeders” or “super sperm,” research reveals that the real men who do this are motivated to help others. (Shutterstock)

Meet the men who donate sperm on Facebook

Sperm donation websites are the Ubers and Airbnbs of the fertility world. But why are they so popular? New research explains the reasons why some men donate.

More Analysis and Comment

Editor's Picks

More