Asteroid impact simulation comes ahead of a live test planned for 2022
Seismic signals picked up in the surface of Mars at the beginning of April
Researchers used earlier observations from NASA's MESSENGER mission to probe Mercury's inner core
Demonstration mission expected to be launched in June 2021
NASA says the risk of debris colliding with the space station has increased in the 10 days following the test
NASA's Jim Bridenstine says the agency is considering SpaceX's Falcon Heavy rocket and ULA's Delta IV Heavy rocket for the Agency's Moon mission
Mars 2020 rover is scheduled for launch on 17 July 2020 and will touch down on Mars six months later
Demonstration Mission-1 will launch from Cape Canaveral, Florida, on 2nd March
NASA's safety advisory panel has listed four major risk issues in its annual report
Final attempt to make contact with the rover was made on Tuesday, but the rover didn't respond