The Expansive Life of Stephen Hawking
Dr. Hawking captured the public imagination and endeared himself to tens of millions of people around the world with his exploration of black holes...
Stephen Hawking, Who Examined the Universe and Explained Black Holes, Dies at 76
A physicist and best-selling author, Dr. Hawking did not allow his physical limitations to hinder his quest to answer “the big question: Where did...
What Fertility Patients Should Know About Egg Freezing
Storage failures at two respected clinics have raised concerns about safety and reliability. Here are some things to look out for and questions to ask
Feature: Should Some Species Be Allowed to Die Out?
As the list of endangered animals worldwide grows longer, society may soon be faced with an impossible decision: which ones to take off life support.
Near Noisy Oil Fields, Lovesick Birds Change Their Tunes
“Hey, hey, sexy, hey, I’m Bob, a Savannah sparrow.” Birds near oil fields tweak their mating calls in complex ways that researchers are only...
Robert Lightfoot, NASA’s Acting Administrator, to Retire as Trump’s Nominee Is Stalled
Mr. Lightfoot has filled in since the end of the Obama administration, and the agency has never gone this long without a leader confirmed by the...
Trilobites: Here’s a Newly Discovered Difference Between Alligators and Crocodiles
Many differences between the two reptiles center on their heads and mouths, but researchers in Japan have found features in their limbs that set...
Trilobites: After a Volcano’s Ancient Supereruption, Humanity May Have Thrived
Some said the Toba volcano’s explosion brought humanity to the brink of extinction 74,000 years ago, but archaeological evidence from South Africa...
Why Studying Gun Violence Matters
Why do so many Americans kill one another, and how can the violence be stopped? The C.D.C. quit studying these and other questions over 20 years ago.
Four Years After Declaring War on Pollution, China Is Winning
Research gives estimates on the longer lives that are now possible in the country.
The New Health Care: Do Antidepressants Work?
The most comprehensive study on them has recently been published, showing mostly modest effects.
Hotter, Drier, Hungrier: How Global Warming Punishes the World’s Poorest
A series of droughts with little recovery time in the intervals has pushed millions to the edge of survival in the Horn of Africa.