How Heavy Elements Take Shape

Stars spend most of their lives burning hydrogen through nuclear fusion reactions to produce the energy required to remain stable as long as possible. By doing so, two hydrogen atoms are fused together to create a single helium atom and a fair amount of energy. However, at some point in time,... [ read more >> ]

Crab Nebula

Image comment: Crab Nebula
Image credits: NASA

Crab Nebula