John O'Connor Latest articles by John O'Connor Tornado Season Off to Roaring Start By John O'Connor published 13 March 06 Weather Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1James Webb telescope spots odd disk around star that could shatter planet formation theories2Skull of bear held captive to fight Roman gladiators discovered near ancient amphitheater in Serbia3Map of 600,000 brain cells rewrites the textbook on how the brain makes decisions4Key Atlantic current could start collapsing as early as 2055, new study finds540-year-old 'queen of icebergs' A23a is no longer world's biggest after losing several 'very large chunks' since May