Researchers demonstrate a perceptual illusion in which a computer-generated virtual body can be made to feel like one's real body, so that one can feel sensations from it and respond to it as if it were real.

As planned, LCROSS has just crashed into Cabeus crater on the Moon four minutes after the Centaur upper stage crashed.

The Nobel Committee announced the winners of the 2009 Nobel Prize in Physiology or Medicine, equally shared between Elizabeth Blackburn of UCSF, Carol Greider of Johns Hopkins, and Jack Szostak of Harvard Medical School, awarded for the discovery of telomeres.

The MESSENGER spacecraft makes its closest pass in its third and final flyby of Mercury.