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.
What Movies are in the 'Twilight' Saga? The Basics on the 'Twilight' Films Based on Stephenie Meyer's Books. A few years ago, Robert Pattinson, Kristen Stewart and Taylor Lautner could hardly go out in public because they were the lead actors in the incredibly popular Twilight films, based on the series of novels by Stephenie Meyer.