Videos Astrophysicist Neil deGrasse Tyson reacts to a discovery on Mars and what it could mean for life beyond Earth. #CNN #News Articles You May Like Facebook and Instagram will reinstate Trump after two-year ban Politicians are not offering a comprehensive solution on how to fix the NHS Freezing fog to cause disruption as forecasters predict an end to the cold snap Divisional rankings: Moreno is back on top and Hill makes a big move up ‘Unprecedented danger’: Doomsday Clock moves 10 seconds closer to midnight as Ukraine war rages