Fuel fleas. Fuel fleas are microscopic hot particles of new or spent nuclear fuel. While small, they tend to be intensely radioactive. The fuel particles, the size about 10 micrometers, are a strong source of beta and gamma radiation and a weaker source of alpha radiation.
Bella Cullen(played by Kristen Stewart in the movies). Bella Swan is 18 at the time she's turned into a vampire in Breaking Dawn. She is the central character in the Twilight saga and took the name Cullen when she married Edward Cullen.
Actress Kristen Stewart (L) and actor Robert Pattinson accept the Best Kiss award onstage during the 2011 MTV Movie Awards at Universal Studios' Gibson Amphitheatre on June 5, 2011 in Universal City, California. (Getty Images)more pics Â» The characters on Twilight are a complicated bunch! There's the vampires, and the Volturi, and the werewolves, and Victoria and her crew, Bella and the humans, and we're just getting started! Each type of characters brings something new to the series -- and movies. Robert Pattinson (Getty) The next Twilight flick doesn't hit theaters until November 18, 2011, with the final film in the 2-part finale will come out in November 2012.