I just found this great iPhone/iPad app for browsing Library of Congress photos.
Pictures of pictures through drops of water (by Maianer on flickr, h/t John D. Cook)
A+ captioning by The Big Picture
(via Andrew B. Myers)
Humans fire laser to sky, sky laughs, responds with lightning
(They were actually firing a kind of “guide star” that is used to target and correct ground-based telescopes when this shot happened. Nature is still not impressed)
(via Short Sharp Science)
amazing.
