Fresh from flight training and their first head-over-heels sample of weightlessness, NASA’s astronaut candidates are available to meet with the news media Thursday in Houston at 3 p.m. EDT. The class includes three educator astronauts, three military pilots, a Navy SEAL, an astrophysicist, two physicians, and an engineer. Also training with the 11-member astronaut candidate class are three Japan Aerospace Exploration Agency (JAXA) astronauts.