NASA’s Artemis II moon mission engulfed by debate over its controversial heat shield
Experts have sounded the alarm over NASA’s decision to use a heat shield design for Artemis II that may be riskier than the space agency claims
Elon Musk fuses SpaceX with xAI
Acquiring xAI could boost SpaceX’s plans to launch a one-million-strong satellite constellation to act as an orbital data center network
NASA delays Artemis II moon mission after critical test raises issues
NASA will review data gathered during a simulated launch of the Artemis II rocket before revealing a new date for its upcoming moon mission
Spiders taught scientists how to make unsinkable metal
Researchers mimicked the air-trapping tricks of diving bell spiders to create aluminum that stays afloat—even when punctured
A ‘shadow CDC’ is scrambling to fill gaps in public health data
Dozens of routinely updated CDC databases have gone quiet. Here’s what states and medical societies are doing to preserve U.S. public health
NASA’s Artemis II launch rehearsal hits a snag
NASA engineers temporarily stopped pumping liquid hydrogen fuel into the Artemis II rocket because of an apparent leak
A century of hair clippings show lead exposure rates have plummeted
There’s no safe level of exposure to lead—but a small, strange study shows we’ve made incredible progress in recent decades
New chicken-sized dinosaur baffles paleontologists
The tiny Foskeia pelendonum was a plant-eating dinosaur with a “weird” anatomy, scientists say
The sun just unleashed its most powerful solar flare in years
The sun is experiencing a violent solar storm, releasing one of the strongest solar flares seen in the past 30 years
Jupiter isn’t as huge as we thought it was
“Textbooks will need to be updated”: the solar system’s largest planet appears to be smaller and flatter than we knew
Astronomers declare rare dark-sky victory over scrapped energy project in Chile
After a year of protests from astronomers, authorities have abandoned plans for a giant, light-polluting renewable-energy facility in Chile’s Atacama Desert
SpaceX plans to launch one million satellites to power orbital AI data center
Elon Musk’s SpaceX is set to massively expand its orbital footprint in a bid to power next-generation artificial intelligence