While many fossils have been flattened by time and the elements, a titanosaur found in an egg was preserved in three dimensions.
Years of observations in central Italy show that more carbon dioxide percolates through Earth’s crust during periods of strong seismic activity.
A species of insect tags along with elephant seals as they spend months at sea, enduring the crushing pressure changes of the mammals’ dives.
Ms. Tufekci, a computer programmer who became a sociologist, sounded an early alarm on the need for protective masks. It wasn’t the first time she was...
Friday: People with respiratory illnesses may be more vulnerable right now. Also: Are N95 masks recommended for wildfires?
The planetary scientist Sarah Stewart Johnson and the astrophysicist Sara Seager write about the allure of studying space.
The planetary scientist Sarah Stewart Johnson and the astrophysicist Sara Seager write about the allure of studying space.
In what may be the world’s most important math puzzle, researchers are trying to figure out how many people in a community must be immune before...
The monster animal, more closely related to American alligators than modern crocodiles, had teeth the size of bananas and a strange enlarged snout.
Researchers have used reflective prisms left on the moon’s surface for decades, but had increasingly seen problems with their effectiveness.