On Jupiter's moon Europa, 'chaos terrains' could be shuttling oxygen to ocean

NASA's massive new rocket, built to return humans to the moon for the first time since 1972, rolled out of the largest single story building in the world last week — at 1 mile per hour. "It took 10-hours and 28 minutes for SLS and Orion to reach the launch pad, four miles away."

News at a glance: Webb telescope looking sharp, Omicron’s burden, and statues of female scientists

NASA's Perseverance rover begins 3-mile dash to the martian delta that scientists hope holds signs of ancient microbial life. Ingenuity helicopter will scout ahead after mission extended until at least September.