Astronomy

Ukrainian startup expects to fly “self-devouring” rocket in 2022 
US plans to put nuclear-powered spacecraft in orbit by 2026 
We have a new way to hunt for potentially hazardous asteroids 
After 350 years, astronomers still can’t explain the solar system’s strangest moon
NASA to help put first Japanese astronaut on the moon 
Telescope “sunglasses” find brightest pulsar outside our galaxy
Perseverance rover kicks off new hunt for life on Mars 
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