Nov. 16, 1999
International team will provide meteor counts for satellite operators
Oct. 5, 1999
MIT scientists use a NASA-developed device in a first step towards tissue engineering. The cell constructs are less than 1/5-inch across, but represent a significant step in developing replacement parts for damaged organs.
June 10, 1999
Dave Sentman, who originally dubbed the mysterious red flickers of light above thunderclouds Sprites, works to move them from the realm of mystery into scientific knowledge.
Sept. 3, 1999
Lunar Prospector failed to kick up a visible dust cloud when it crashed into the Moon, but researchers are still sifting through their data for elusive signatures of water.
June 8, 1999
Does Lightningaffect the ozone layer? What causes "sprites?" And why does "messy" Lightningfollow a simple Lightningmodel? Hoping to stimulate further thought about the Physicsof lightning, Martin Uman of the University of Florida posed these fundamental questions to atmospheric scientists attending a scientific conference this week.
Aug. 25, 1999
Mars Polar Lander heads for a touch down near the Red Planet's south pole to study the history of martian climate.
Sept. 2, 1999
Scientists continue to ponder one of our star's most closely guarded secrets - why does the solar corona get hotter farther from the Sun's surface?
May 28, 1999
NASA scientists are using neural networks to teach a computer how to recognize life when it sees it. By practicing first on images of terrestrial life, remote instruments someday may be able to identify life forms elsewhere in the solar system.
Nov. 18, 1999
An outburst of over 1500 Leonid Meteorsper hour dazzled observers in Europe and the Middle East.
Nov. 24, 1999
Once upon a time, in a galaxy far, far away, a supermassive black hole burped and sent a flash of gamma rays that arrived at Earth 11 billion years later. Observations by the Burst and Transient Source Experiment will help give insight into the birth and life of quasars.