Science

The most extensive research on Medicaid coverage to date found that it reduced the risk of death by 21 percent.The most extensive research on Medicaid coverage to date found that it reduced the risk of death by 21 percent. Read More

Disturbing thoughts and social fixations are among the many manifestations of obsessive-compulsive disorder.Disturbing thoughts and social fixations are among the many manifestations of obsessive-compulsive disorder. Read More

The rock called Maka Lahi is important in the mythology of the people of Tonga, and scientists have worked out part of its origin story.The rock called Maka Lahi is important in the mythology of the people of Tonga, and scientists have worked out part of its origin story. Read More

He helped develop the device most often used for surgical abortions. He also spent more than half a century promoting women’s reproductive health in developing countries.He helped develop the device most often used for surgical abortions. He also spent more than half a century promoting women’s reproductive health in developing countries. Read More

The technique used on a 9½-month-old boy with a rare condition has the potential to help people with thousands of other uncommon genetic diseases.The technique used on a 9½-month-old boy with a rare condition has the potential to help people with thousands of other uncommon genetic diseases. Read More

The progress comes as the Trump administration is proposing to cut funding for many programs believed to have contributed to the improvement.The progress comes as the Trump administration is proposing to cut funding for many programs believed to have contributed to the improvement. Read More

Kseniia Petrova, a Harvard researcher, was detained Feb. 16 at Logan Airport after failing to declare scientific samples she carried into the U.S.Kseniia Petrova, a Harvard researcher, was detained Feb. 16 at Logan Airport after failing to declare scientific samples she carried into the U.S. Read More

A serendipitous solar outburst let scientists point the robot’s cameras toward the Red Planet’s sky to spot a feature shared with our Blue Marble.A serendipitous solar outburst let scientists point the robot’s cameras toward the Red Planet’s sky to spot a feature shared with our Blue Marble. Read More

The E.P.A. said it would maintain limits on the two most common PFAS chemicals found in tap water but roll back rules for four others.The E.P.A. said it would maintain limits on the two most common PFAS chemicals found in tap water but roll back rules for four others. Read More

New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as the Chicago Archaeopteryx.New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as the Chicago Archaeopteryx. Read More