Mars helicopter takes it to the limit with groundbreaking flights

Life May Have Been More Likely to Originate on Mars Than on Earth | Daily Planet

Watch (and Hear) How NASA’s Perseverance Rover Took Its Epic First Selfie on Mars

Report backs NASA proposal to change astronaut radiation exposure limits. A National Academies committee has endorsed a NASA proposal to change the radiation exposure limits the agency sets for its astronauts but cautioned that the revised limit is still insufficient for human Mars missions.