July 29, 1999
Using an experimental autopilot system, NASA's exotic Deep Space 1spacecraft has completed the closest-ever flyby of an asteroid.
June 7, 1999
This week The Red Planetand the blue-white star Spica are shining in the night sky just 1 3/4 degrees apart. It's a show that star gazers won't want to miss.
Dec. 16, 1999
Solar activity is picking up, but not as much as one team of scientists had predicted. "The sun is a variable object and there are going to be some ups and downs," says NASA's David Hathaway. One 'up' he doesn't expect is a large eruption predicted nowhere except in the rumor mill.
Oct. 25, 1999
To say they are ghoulish may be going too far, but like ghouls those studying Gamma Ray Bursts gleefully seek the moldering remains, and never see the living victim. But they are very much interested in both the victim and the cause.
May 27, 1999
Russian and Marshall scientists will look for life forms in the inhospitable realm of Siberian permafrost. The scientists hope to broaden our understanding of "extremophiles" - forms of life that exist under extreme conditions - which will help in the search for life on other planets.
June 29, 1999
A team of sled dogs has braved spring storms and wily marmots to recover microbes from a California mountain top. Yeast samples exposed to extreme conditions near the White Mountain summit will be distributed to classrooms as part of NASA's Life on the Edge education initiative.
Sept. 21, 1999
X-ray pictures from NASA's Chandra X-ray Observatoryreveal previously unobserved features in the remnants of three different supernova explosions.
May 18, 1999
Optical computers will be much faster than today's electronic computers. Scientists at Marshall Space Flight Center are conducting space research to build components needed for the next step: hybrid electro-optic computers.
Sept. 7, 1999
A NASA scientist has created a new model of the plasmasphere surrounding our world, building on the work of previous models. Earth's complicated plasma environment directly affects our life on Earth - from radio transmissions and power grids to satellite safety.
June 28, 1999
Earth may be headed into two meteoroid swarms that could produce shooting stars for the next week. Radio observations reported yesterday indicate that meteor activity may already be underway.