Aerospace

Einstein was right. Flying clocks around the world in opposite directions proved it.
NASA to help put first Japanese astronaut on the moon 
Perseverance rover kicks off new hunt for life on Mars 
Boeing’s Starliner is finally on its way to the ISS (Updated)
NASA is planning to bring back supersonic flight over land
Chinese rover makes surprise discovery about liquid water on Mars 
Stanford’s gravity telescope concept uses the sun to see exoplanets
How the Kessler Syndrome can end all space exploration and destroy modern life
Scientists grow plants in real lunar soil for the first time 
A 20-seat hypersonic plane is being built in Atlanta