SpaceX "Starfall" launches on secretive test flight

Modeling nuclear fusion at lightning speed

Scientists Describe 'Incredible' Movements of Fruit Fly Sperm

Scientists are unraveling the mysteries of fruit fly sperm, revealing astonishing movements and physical properties.

New Study Challenges Long-Held Idea that Our Ancestors Simply Got Bigger Over Time

New research challenges the theory of steady human growth, suggesting instead a sudden leap in body size approximately 2 million years ago.

Solar storms don't harm people directly — they induce electric currents in long metal, meaning the power lines, pipelines and undersea internet cables we've strung across the planet are exactly what they attack

What is Starfall? A look at SpaceX's mysterious new return capsule

Storms move through the Philly area, bringing heavy rains, tornado warnings, and flooding