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.
The 'Twilight' Cast: Where Are They Now? Five long years ago, Stephenie Meyer's books were best-sellers, but most people didn't know about her sparkly romantic vampires. Kellan Lutz and Jackson Rathbone were not household names. The vampire romance made instant A-listers out of Stewart, Robert Pattinson, and Taylor Lautner.