"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

Comet Lulin

Comet Lulin
Submitted by kuky on Wed, 01/28/2009 - 12:12am

Who took this image?

Submitted by ironsparticus (not verified)
on Fri, 02/13/2009 - 7:29pm

Who took this image?

Comet Lulin photo

Submitted by kuky
on Sat, 02/14/2009 - 5:27pm

Amateur astronomer Gregg Ruppel captured the above image of Comet Lulin on January 15, 2009, which shows the comet's faint tail and rare anti-tail—a slim "second tail" that seems to point toward the sun but is actually an optical effect.

Comet Lulin will make its closest approach to Earth on February 24, and while it will probably be hard to see with the naked eye, astronomers think the "fresh" new comet has the potential to brighten rapidly.

Photograph by Gregg Ruppel

Comet Lulin

Submitted by kuky
on Fri, 02/13/2009 - 11:03pm

The image is an illustration from this article

http://njastro.org/agx/content/two-tailed-comet-nearing-earth