"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools."
--1921 New York Times editorial about Robert Goddard's revolutionary rocket work.

"Correction: It is now definitely established that a rocket can function in a vacuum. The 'Times' regrets the error."
NY Times, July 1969.

— New York Times

M51

Again M51 (seems to be popular on this site) taken on Saturday evening when the sky was clear. I notice some dust mites on image, need to clean camera. Just over one hour exposure. Also note that there is another galaxy in the lower right hand corner, 14.5 magnitude IC4263, faint but large.

M51