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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

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

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

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

Scientists Fuse Human Neurons Into the Brains of Mice

CARL ZIMMER AND CAROLYN Y. JOHNSON

The studies may help reveal the causes of brain disease in people and point the way to treatments. But researchers already are calling for new ethical guidelines.

Microscopic Videos That Show the Invisible Wonders Around Us

STELLA RAINE CHU

The winners of this year’s Nikon Small World in Motion competition showcase the wiggly, feathery, undulating beauty of invisible life.

Japan just hit a new longevity milestone

More than 100,000 people in the country are over 100 years old

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

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

T. Rex, King of the Dinosaurs, Had a Body Temperature of 97 Degrees

CAROLYN Y. JOHNSON

Hotter than a crocodile, cooler than a chicken, T. Rex was definitely warm-blooded, according to a new study.

Human-Caused Warming Played ‘Very Strong’ Role in Himalayan Floods, Report Finds

RAYMOND ZHONG

Rising temperatures contributed to the disaster by destabilizing the permafrost and ice around the collapsed rock, scientists concluded.

Massive Black Holes May Have Started as Little Red Dots

K. R. CALLAWAY

A new simulation suggests little red dots, unusually compact objects seen in photos from space, might be one stage in the evolution of black holes.

Does the Stork’s Return to Britain Restore History or Rewrite It?

LEO SANDS AND HANNAH REYES MORALES

Conservationists set up a colony of white storks in southern England, touching off a debate over whether they truly belong there.

Missing pages of priceless missing Henry VIII–era manuscript finally found

The pages come from a copy of Mirror of the Blessed Life of Jesus Christ that once belonged to John Gage, an enforcer in Henry VIII's court and a key figure in the historical dissolution of the monasteries

Mothers’ Intrusive Thoughts Are Mostly Benign. Lindsay Clancy’s Case Is an Exception.

ELLEN BARRY

Experts say that after childbirth, intrusive thoughts are common and mostly benign. Lindsay Clancy’s story provides a disturbing exception.