Physics, Physicists | featured news

This composite image of the Tycho supernova remnant combines infrared and X-ray observations obtained with NASA's Spitzer and Chandra space observatories, respectively, and the Calar Alto observatory, Spain. It shows the scene more than four centuries after the brilliant star explosion witnessed by Tycho Brahe and other astronomers of that era.

European researchers observe for the first time a transformation in neutrinos, evidence that they have mass. It's an important step in understanding the universe's dark matter.

Physicist Stephen Hawking, the author of "A Brief History of Time" who is almost completely paralyzed by motor neurone disease, was comfortable in hospital on Tuesday, his university said.

Eminent scientist said to be very ill in Cambridge hospital.