The Artemis II moon flyby may be over, but the hunt for scientific treasures in the trove of data collected is just starting. More

Artemis II is underway, carrying four astronauts around the moon on a 10-day mission to test systems for later lunar flights and an eventual moon base. More

Gases jetting out of Comet 41P/Tuttle-Giacobini-Kresák may have caused it to reverse its spin in 2017, possibly leading to its eventual destruction. More

Found in an ultrafaint dwarf galaxy, the ancient star’s unusual chemistry indicates it formed from gas enriched by a single early supernova. More

A $20 billion plan for a moon base by 2030 and the launch nuclear-propulsion space exploration raises hopes, but caution given deep government cuts. More