University College London

Scientists are closing in on a long-sought goal — a blood test to screen people for possible signs of Alzheimer’s disease and other forms of dementia.

New research shows more promise for using AIDS treatment drugs as a prevention tool, to help keep uninfected people from catching HIV during sex with a partner who has the virus. There were no infections among gay men who used a two-drug combo pill either daily or just before and after sex with someone with HIV, one study found. In...

Smoking just one single cigarette a day can significantly raise your risk of heart disease and stroke, researchers said in a new report that contradicts the notion that cutting way down from heavy smoking drastically reduces risks, NBC News reported. A team led by Allan Hackshaw at the UCL Cancer Institute at University College London went back through credible health...

For the first time, astronomers have glimpsed the dawn of the universe 13.6 billion years ago when the earliest stars were just beginning to glow after the Big Bang. And if that’s not enough, they may have detected mysterious dark matter at work, too....
The glimpse consisted of a faint radio signal from deep space, picked up by an antenna that...

DNA from a 10,000-year-old skeleton found in an English cave suggests the oldest-known Briton had dark skin and blue eyes, researchers said Wednesday. Scientists from Britain’s Natural History Museum and University College London analyzed the genome of “Cheddar Man,” who was found in Cheddar Gorge in southwest England in 1903. Scientists led by museum DNA expert Ian Barnes drilled into...

Tiny tubes and filaments in some Canadian rock appear to be the oldest known fossils, giving new support to some ideas about how life began, a new study says. The features are mineralized remains of what appear to be bacteria that lived some 3.77 billion to 4.28 billion years ago, the scientists said. That would surpass the 3.7 billion years...

What do your tweets say about you? It turns out, according to a new study by a University of Pennsylvania researcher, a lot more than you may think.