January 17, 2017

Obama pops in final WH briefing

President Obama makes a surprise appearance as Press Secretary Josh Earnest delivers his final White House briefing. Source: cnn-us
January 17, 2017

Two strange mammals illuminate the process of natural selection

CONVERGENT evolution—different species arriving independently at the same answer to a question posed by nature—is a topic of great interest to biologists. One aspect of the […]
January 16, 2017

Carton of lemons offers simple lesson

When Erin Chieze saw an indentation on her breast in December 2015, her conclusion was immediate. “I instantly knew I had breast cancer,” she wrote on […]
January 14, 2017

100 moments from Obama's presidency

Flip through 100 moments from eight years of the Obama presidency. CNN Films presents “The End: Inside the Last Days of the Obama White House” Wednesday […]