Environment When birds build nests, they're also building a culture Nest-building isn’t just instinct. Birds can learn from others, letting groups within one species develop their own distinctive nest-building traditions. Nell Greenfieldboyce
Science FAA grounds SpaceX ahead of historic Polaris Dawn commercial spacewalk The Federal Aviation Administration opened the investigation after a rocket booster toppled aboard a drone ship after it was returning from lofting SpaceX's Starlink internet satellites into space. Geoff Brumfiel
Science Matching dinosaur prints were found an ocean apart in Africa and South America A group of scientists say in new research that matching dinosaur tracks found in modern-day Brazil and Cameroon were made 120 million years ago in an area that once connected the two continents. Joe Hernandez
Science Boeing faces hard questions about Starliner and its future in space Boeing’s Starliner will return to Earth as soon as next week — but the crew will stay in space into next year. It’s another blow for Boeing, and could have major implications for its space business. Joel Rose
Science Long overlooked, menstrual blood is a treasure trove for science NPR’s Ailsa Chang talks to Mother Jones’ Maddie Oatman about her recent reporting revealing how menstrual blood has long been an overlooked source of key medical information. Ailsa Chang
Science Scientists explore how bats can eat so much sugar Bats can consume an extraordinary amount of sugar without getting sick. Scientists are trying to learn if bats have something to teach humans when it comes to controlling and treating conditions like diabetes.
Science The first commercial spacewalk will be conducted later this week Four astronauts aboard a SpaceX capsule will attempt the historic private spacewalk. It's a high-risk operation with lots that could go wrong, but with a potentially great view. Geoff Brumfiel
Environment In Palau, residents are divided on easing fishing restrictions Palau made history a decade ago when it closed off 80% of its oceans to any kind of fishing. A proposal to open up some of its marine sanctuary to fishing has divided residents on how best to protect the oceans around the Pacific nation. Emily Feng
Science NASA will bring stranded astronauts back on SpaceX — not Boeing's Starliner NASA had been weighing whether it would be safe enough to return two astronauts to Earth on Boeing's Starliner. Nell Greenfieldboyce
Science NASA will bring stranded astronauts back on SpaceX — not Boeing's Starliner Boeing's troubled Starliner remains docked at the International Space Station as NASA decides it is too risky to bring the astronauts home on the spacecraft. The two astronauts will return in February. Nell Greenfieldboyce