More than 100,000 people in the country are over 100 years old
T. rex was as warm-blooded as humans, new study finds
The dinosaurs were once considered reptilian, but the new results suggest we may need to rethink their evolution
Trump’s surgeon general nominee Nicole Saphier praises MMR and hepatitis B vaccines in Senate hearing
Both the president and Secretary of Health and Human Services Robert F. Kennedy, Jr., have made numerous false claims about the vaccines’ efficacy and safety
Human brain organoid transplants mesh with mouse brains, forming active neural circuits
The technique opens new possibilities for investigating neurological conditions, from autism to dementia
Blood test shows promise in detecting pancreatic cancer early—a ‘Holy Grail’ for the field
Pancreatic cancer is typically caught in its latest stages, when it is hardest to treat
Anthropic’s AI steals mathematicians’ record for most complicated curve
A search for the most complex elliptic curves has taken mathematicians years. Claude beat the record in days
Vox’s Unexplainable explores Scientific American’s biggest unanswered science questions
Rachel Feltman joins Vox’s Unexplainable to discuss the enduring mysteries that continue to challenge science
The hole in the ozone layer is healing, but extreme weather may be slowing progress down
Climate change, driven by humans, is making extreme weather more commonplace
What even is an AI kill switch?
Amid renewed calls to slow frontier AI, experts are considering what an emergency stop would entail—and who would decide when to use it
How pizza can solve this unusual math puzzle
Moser’s circle problem can be used to divide a pizza into one, two, four, eight, 16 or 31 slices. It’s a perfect example of how the numbers in a sequence aren’t as clear-cut as they may first appear