CNN CNN Newsroom December 29, 2013 21:42:00
In star warz, there's some good news. on a very small scale, they've gotten particles of light like photons to stick together. follow us on twitter at cnnlightyears for more science updates. >> thanks so much, elizabeth. may the force be with you. >> millions of people around the world will go hungry. this holiday season, singer christine aguilera looks at how an impact can be made. ♪ twinkle, twinkle little star >> aguilerra is lending a hand
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