Science

It’s been about 250 million years since reptile-like animals evolved into mammals. Now a team of scientists is predicting that mammals may have only another 250 million years left.The researchers built a...

In 1842, a vast, nearly intact skeleton was unearthed on a plantation in Alabama; it was soon identified as a member of Basilosaurus, a recently named genus of prehistoric sea serpent. But...

On Sunday morning, a brown-and-white capsule will shoot through Earth’s atmosphere to drop off a cache of pristine space rock to a team of eagerly waiting scientists and engineers.If successful, the sample...

Liv Grace came down with respiratory infections three times over the course of four months. Each occurred after a visit to a medical provider in the Bay Area.Mx. Grace, 36, a writer...

Espen Finstad was trudging through mud in the Jotunheimen mountains of eastern Norway this month when he happened upon a wooden arrow, bound with a pointed tip made of quartzite. Complete with...

As the sun rose on Friday over the lunar plateau where India’s Vikram lander and Pragyan rover sit, the robotic explorers remained silent.The Indian Space Research Organization, India’s equivalent of NASA, said...

In the dappled sunlit waters of Caribbean mangrove forests, tiny box jellyfish bob in and out of the shade. Box jellies are distinguished from true jellyfish in part by their complex visual...

Three years after its marathon voyage across the Central Arctic Ocean frozen in the ice, the German scientific research ship Polarstern has once again reached the North Pole.This time the expedition is...

Nearly 500,000 people, many of them children, will keep Medicaid and Children’s Health Insurance Program coverage after state officials discovered major errors in their procedures for reviewing eligibility for the programs, federal...

After a year spent listening to the constant hum of the complicated machinery that keeps the International Space Station livable, the astronaut Frank Rubio is looking forward to some silence on Earth.Mr....