Launch window: 2010-2108 GMT (1510-1608 EST)

Launch site: Cape Canaveral Air Force Station, Fla.

An Orbital Sciences air-launched Pegasus XL rocket will carry NASA's Solar Radiation and Climate Experiment (SORCE) satellite into orbit to make precise measurements of total solar irradiance, which is the main source of energy in the Earth's atmosphere.

more info :

http://lasp.colorado.edu/sorce/index.html

Prime Minister Ariel Sharon and Education Minister Limor Livnat spoke with Israel's first astronaut, Col. Ilan Ramon, on a video hook-up late this afternoon as he was circling the Earth for approximately the 80th time since ascending into space five days ago. All three of them expressed great excitement at the opportunity to communicate in this manner.

The seven astronauts aboard Columbia beamed down television views of

their smallest companions in orbit today, including insects, spiders,

fish, bees and silk worms that are part of the Space Technology and

Research Students package of experiments designed and developed by

students in six countries.