var items = new Array (new ImageMetaData('Physicist Stephen Hawking flashes a grin as he floats in weightlessness on Thursday, with Zero Gravity Corp.\'s Peter Diamandis looking on from right. The weightless apple is a tribute to Isaac Newton and his theories of gravity. Hawking holds the professorship at Cambridge University that was held by Newton in the 1600s.  \n','http://msnbcmedia.msn.com/i/msnbc/Components/Photos/070426/070426_StevenHawkinsZeroG_hmed_6p.jpg','8:11 p.m. ET, 4/26/07','Steve Boxall','MSNBC',18340389));