Latest Science headlines

He’s challenging Joe Kennedy III with no hope of victory, but Gary Rucinski isn’t your typical political also-ran. 

The horseshoe crab is a paradoxical creature: Its spiky tail and helmet-shaped body make it one of the most medieval-looking members of the animal kingdom, while its milky blue blood is essential to ensure the safety of cutting-edge biomedical devices and drugs.For decades, biotechnology companies have harvested horseshoe crabs and bled them to extract a substance used to create a sensitive test for bacterial contamination in intravenous drugs and devices.Studies have found that the vast majority of horseshoe crabs survive the procedure, but researchers at Plymouth State University and the University of New Hampshire began to wonder whether the bleeding might have other, less severe effects that could play a role in a recent population decline. 

A new study bolsters the theory that human-caused climate change is making it easier to see a rare kind of cloud, researchers said. 

Woods Hole scientists led a team that may have solved a huge riddle in Earth’s climate past.  

A new study provides fresh evidence that the first dogs of North America all but disappeared after the arrival of Europeans. 

The SpaceX’s capsule reached the station three days after launching from Cape Canaveral.