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Hubble Space Telescope

The $2 billion Edwin P. Hubble Space Telescope (HST) was lifted into orbit by the space shuttle Discovery on April 24, 1990. Weighing approximately 25,500 lb (11,000 kg) and measuring 43 ft (…

space shuttle

(Encyclopedia) space shuttle, reusable U.S. space vehicle (1981–2011). Developed by the National Aeronautics and Space Administration (NASA) and officially known as the Space Transportation System (…

1997 Medal of Science Recipients

William K. Estes, Emeritus Professor of Psychology at Harvard University in Cambridge, Mass., for fundamental theories of cognition and learning that transformed the field of experimental…

Atomic Theory

A theory of the structure and behavior of atoms has taken more than two millenia to evolve, from the abstract musings of ancient Greek philosophers to the high-tech experiments of modern…

New Uranian Moons Discovered

In Sept. 1999, Cornell University astronomers announced the discovery of three more satellites. The moons have been named Setebos, Stephano, and Prospero. The satellites are about 12 mi (20…

Tour de France—2007

(July 7–29, 2007) Cyclist, country Team Behind 1. Alberto Contador, Spain Discovery Channel…

Willem Einthoven Biography

inventorBorn: 21 May 1860Best Known as: inventor of the first reliable electrocardiogram Willem Einthoven produced the first instrument to detect the…

New Planets and a Larger Solar System

More planets? by Chris Frantz A view of the new solar system, thanks to The International Astronomical Union/Martin Kornmesser Related Links Basic Planetary DataThe Solar…