Neutrinos have mass, they change identity when passing through matter, and the Standard Model of particle physics is wrong. New results from the Sudbury Neutrino Observatory (SNO) in Canada leave no room for other conclusions. The results, announced on April 20th at a joint meeting of the American Physical Society and the American Astronomical Society…
Astronomers have discovered a spike of X-ray emission in galaxy clusters — “ordinary” interpretations don’t hold up, so some are turning to dark matter for answers.
A new computer simulation provides a brief glimpse at what makes stellar bombs tick.
Scientist George Efstathiou weighs in on the latest results from the Planck satellite and what they say about cosmic inflation, the first stars, and more.
Scientists might have found the source of an incredibly energetic particle that bored into the Antarctic ice sheet.