Navy Capt. Bruce McCandless II becomes the first human satellite as he takes the self- contained Manned Maneuvering Unit (MMU) out for a spin on Feb. 8 while in Earth orbit on space shuttle mission 41-B.
The KC-Z4, a blended wing body tanker concept being developed by startup JetZero, could fuel larger groups of aircraft at longer range to hold more targets at risk, company officials say.