Captain America fighting Red Skull
Electron Microscope image of DNA
Mind Blown: Real Image of T4 bacteriophage (a virus) via electron microscope....... Find this quite frightening! A nasty little alien that looks just as aggressive as anything I've ever seen!!
Atomic Orbitals by mrkism, via Flickr
The Atomic Nucleus by mrkism, via Flickr
Very cool image of very dangerous "bugs".
RNA chaperones (in blue) smooth out rough spots in the RNA folding process. (Guanosine pairs are shown in green). Image courtesy of Kevin Weeks and Yan Liang.
Apoptosis (cell death). Looks like an amazing work of art!
Hellboy by Gabriele Dell’Otto *