“First direct observation of the orbital structure of an excited hydrogen atom”!

Summary: http://physicsworld.com/cws/article/news/2013/may/23/quantum-microscope-peers-into-the-hydrogen-atom

Original article: Stodolna et al. 2013. “Hydrogen Atoms under Magnification: Direct Observation of the Nodal Structure of Stark States.” Phys. Rev. Lett. 110, 213001 DOI: 10.1103/PhysRevLett.110.213001

http://prl.aps.org/abstract/PRL/v110/i21/e213001