Physicists create hottest-ever substance

Scientists say they've created the highest temperature since the Big Bang - 250,000 times hotter than the sun.

US team discovers heaviest antimatter yet

Scientists at the US Department of Energy's Brookhaven National Laboratory have made the heaviest antimatter ever found.   

'Law of nature' broken, say physicists

Scientists at Brookhaven National Laboratory say they have broken one of the laws of nature.