Learn more about brown dwarfs, the cosmic misfits that blur the line between planet and star.

Learn what happens to cells inside the nose during an RSV infection, and why infants are so vulnerable to the virus.

Learn how high caffeine levels and overlooked stimulants in energy drinks may strain the heart and elevate stroke risk.

Learn about theobromine, a chemical compound in dark chocolate that is linked to anti-aging.

Learn how a particle born in the sun’s core left a measurable flash of light two kilometers beneath Earth’s surface.

Learn how chemical signatures in the Hjortspring boat’s caulking pointed researchers toward its Baltic origins.

Learn how new discoveries about whale language also raise ethical and legal questions.