Fifth force experiment: the cold neutron guide hall at NIST’s Center for Neutron Research in Maryland. (Courtesy: NIST/Yiming Qiu) An improved search for a potential fifth force of nature is one of a trio of new results gleaned from observations of ...

Luke Aikins went skydiving without a parachute. This is crazy---not because it's impossible, but because really bad things happen if you make a mistake. If you haven't seen the video, it shows Aikins stepping out of a plane at 25,000 feet and falling into ...

This article was originally published at The Conversation. The publication contributed the article to Live Science's Expert Voices: Op-Ed & Insights. As "Star Wars: The Last Jedi" opens in theaters and its heroine Rey seeks to learn the ways of the Force ...