Five Questions to Ask Your Doctor When Weighing a Hysterectomy

Astronomers detect ancient lonely quasars with murky origins: « The quasars appear to have few cosmic neighbors, raising questions about how they first emerged more than 13 billion years ago. »

What is ADHD, how do you get a diagnosis and can you only treat it with drugs? All your questions, answered by experts

Paleontologists Discover a New Pterosaur, Filling a Key Gap on the Evolutionary Timeline for These Flying Reptiles. Revealed by a German fossil, the newly described species sheds light on questions that scientists have been puzzling over for nearly two centuries.