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NASA's Hubble Space Telescope has revealed surprising new details about a mysterious, 93-billion-mile-long cloud of dark, fluffy dust that may have formed when massive planetary bodies collided. The discovery challenges previous assumptions about the ...

Scientists have discovered a remarkably preserved 450-million-year-old fossil containing soft tissues from an ancient starfish relative, revealing unexpected details about marine life more than 200 million years before dinosaurs existed. Found in a . ...

A century-old theory about the origins of life on Earth may be wrong. New research from the University of Cambridge suggests that comets traveled too fast and struck at unfavorable angles for the fragile molecules needed for life to survive, making . ...

After more than a year of simulated life on Mars, four NASA volunteers have finally emerged from isolation, bringing a remarkable space exploration experiment to an end. Their experiences growing food, conserving resources, and overcoming Mars-like . ...

Even when bad cholesterol is brought down to healthy levels, some people remain at risk of heart attacks, and scientists may have discovered why. Researchers identified two types of fat-carrying particles that appear to promote inflammation and ...

A surprising discovery suggests that some early signs of Alzheimer's disease may begin outside the brain. Using miniature laboratory systems made from human cells, scientists found that genetic mutations associated with inherited Alzheimer's can ...

CERN scientists have finally found evidence of a particle decay so rare that it happens only once in roughly 10 billion decays, ending a search spanning more than 40 years. The breakthrough could help physicists uncover hidden particles and forces .. ...

Scientists have uncovered a hidden gut-to-brain dopamine pathway that helps explain why bitter coffee and other initially unpleasant flavors can become favorites over time. The discovery reveals how the brain learns to crave certain foods and could . ...

Scientists have observed a bizarre quantum state of matter that combines the structure of a crystal with the frictionless flow of a liquid, all at room temperature. The breakthrough overturns a major practical limitation of exotic quantum experiments ...

After more than 35 years of research, scientists have uncovered surprising clues about what really drives Lyme disease risk. Contrary to longstanding assumptions, deer populations appear less important than mice, which can fuel a 40% increase in tick ...