Aug. 30, 1999
A century-old radiation detection tool may be pressed into service to see if neutrinos change flavor. The answer may change our models of subatomic particles and the universe.
Aug. 27, 1999
NASA has released new high resolution pictures of Jupiter's volcanic moon captured during Galileo's closest flyby since 1995.
Aug. 26, 1999
When the Chandra X-ray Observatorytook its "first light" image, it wasn't looking at just another star shining in the darkness. It was watching a foundry distribute its wares to the rest of the galaxy.
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.
Aug. 24, 1999
Who cares if it rains and the fish get wet? A Pacific Ocean rainfall experiment will have implications for global weather studies.
Aug. 19, 1999
A race to the edge of the solar system and into interstellar space could come out of a contract awarded recently by NASA for the University of Washington to develop an innovative space propulsion concept. The Mini-Magnetospheric Plasma Propulsion - M2P2 - would use the solar wind to push on a small imitation of the Earth's magnetosphere and accelerate the spacecraft to overtake the Pioneers and Voyagers and become the first manmade object to leave the solar system.
Aug. 18, 1999
The Cassini spacecraft has completed a highly accurate flyby of Earth, giving the spacecraft a velocity boost for its journey to distant Saturn.
Aug. 17, 1999
A bit of interplanetary luck allowed two separate space missions take advantage of each other's instruments Tuesday evening for coordinated measurements of Earth's magnetosphere.
Aug. 16, 1999
What do the racing winds on Jupiterand the snail's pace circulation of molten rock inside the Earth have in common? They're all fluids whose movements were studied in a "planet in a test tube" experiment flown aboard the Space Shuttle.
Aug. 13, 1999
The PerseidsLive! meteor balloon ruptured prematurely on its way to the stratosphere. Nevertheless, many observers on the ground were able to see and listen to Perseid meteors. This story includes RealVideo of the meteor balloon popping and an audio recording of a Perseid meteor radar "ping."