SpaceX's New Falcon 9 Rocket Can Be Reused 100 Times
The 'Block 5' rocket is the first Falcon 9 rocket that can theoretically be reused 10 times without any maintenance, and up to 100 times with just minor servicing. If SpaceX can pull off seven successful 'Block 5' launches, the company could get clearance from NASA to do manned missions, says Will Goodman, managing editor of Rockets Are Cool.
For the full interview, [click here](https://cheddar.com/videos/spacexs-falcon-from-the-block-2).
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.
