No, it Wasn't a "Nuclear Alien UFO"! We Demystify the SpaceX Launch
Pop Science Associate Editor Mary Beth Griggs explains the mysterious plume that accompanied SpaceX's Falcon 9 rocket launch last week.
For full interview [click here](https://cheddar.com/videos/what-made-spacexs-rocket-launch-look-like-an-alien-invasion).
The proportion of U.S. kindergartners exempted from school vaccination requirements has hit its highest level ever, 3%, U.S. health officials said Thursday.
New research shows that people can be genetically predisposed to having sleep problems like insomnia and that these signs can show up in early childhood.
The National Zoo's three giant pandas, Mei Xiang, Tian Tian and their cub Xiao Qi Ji. on Wednesday began their long trip to China, leaving behind an empty panda exhibit with no certainty that pandas ever would again take up residence there.
