In 2005, Donald Trump announced the establishment of Trump University, a collection of online and in-person courses that promised to impart real estate investment skills. Lawsuits over the venture resulted in the release of confidential internal documents Tuesday. Thos Robinson/Getty Images hide caption
Scientists say bumblebees can sense flowers' electric fields through the bees' fuzzy hairs. Jens Meyer/AP hide caption
World War II veteran Charles Cavell — a test subject in the military's secret mustard gas experiments — at his home in Virginia. Ariel Zambelich/NPR hide caption
A Lorentz teleprinter, used by the Nazis to transmit highly complex encrypted messages. The National Museum of Computing hide caption
Video shot by a witness shows the 17-year-old gorilla handling the child and standing over him in the enclosure's moat. WLWT/Screen Shot by NPR hide caption
Elderly women dance in a zumba dance during the global climate change awareness campaign Earth Hour at a park in Manila in 2015. Ted Aljibe/AFP/Getty Images hide caption
"Danger, Will Robinson!" The danger-sensing abilities of the newly developed robot system far exceed those of the Robot in the classic TV series Lost in Space. Bettmann Archive hide caption
Members of the 320th Missile Squadron missile combat crew work through a scenario in the 90th Operations Support Squadron's Missile Procedure Trainer on F.E. Warren Air Force Base, Wyo., in June 2014. The MPT is a simulator that allows missile crews to practice contingencies they might face while on alert. R.J. Oriez/U.S. Air Force hide caption
An artist's concept shows the Bigelow Expandable Activity Module, or BEAM, as it would look when fully installed and inflated on the International Space Station. Bigelow Aerospace/NASA hide caption
Researchers found numerous ring-like structures inside France's Bruniquel Cave. They believe they were built by Neanderthals some 176,000 years ago. Etienne FABRE - SSAC hide caption
Thirteen-year-old Alex Iyer (left) gives 6-year-old Akash Vukoti a high-five as Akash leaves the stage after misspelling a word in Round 3 of the 2016 Scripps National Spelling Bee on Wednesday in National Harbor, Md. Alex Wong/Getty Images hide caption
Chechen regional leader Ramzan Kadyrov speaks as he attends celebrations marking Defenders of the Fatherland Day in Chechnya's provincial capital of Grozny, Russia, in February. Musa Sadulayev/AP hide caption
Men, African-Americans, Hispanics and less educated young people are particularly likely to live with their parents. But across all demographics, more and more people are living with Mom and Dad, Pew found. Education Images/UIG via Getty Images hide caption
UCLA safety Rahim Moore (center) celebrates an interception against Temple with teammates Sheldon Price (left) and Glenn Love during the third quarter of the EagleBank Bowl in 2009. Evan Vucci/AP hide caption