July 8, 1999
A new method for making high-energy x-ray optics may open the door for a new era of astrophysical observations.
July 9, 1999
With the discovery of a bright optical flash during a gamma-ray burst in January 1999, and the advancement of observing technologies, it is now possible that amateur astronomers can make meaningful scientific contributions to the study of these enigmatic events. Find out how you can help in the quest to understand these distant objects, from the confines of your own back yard.
June 17, 1999
A team of NASA/Marshall scientists plan to investigate an unlikely 50-year old mystery during the August 11, 1999 total solar eclipse.
June 1, 1999
NASA Scientist studies data from 3 satellites to figure out what stirs up Earth's Northern Lights.
Dec. 2, 1999
The Leonids of 1999 provided skywatchers in Europe and the Middle East with a tremendous show of over 1500 Meteorsper hour at the peak. What lies in store for stargazers next year and in the early 21st century? Read what the experts say!
July 31, 1999
NASA's lunar orbiter collided with The MoonSaturday morning, July 31, 1999, at 0952 GMT
April 21, 1999
Scientists at the Global Hydrology and Climate Center will use Landsat 7 images along with other data to better understand the phenomenon of urban heat islands.
June 15, 1999
Although Lightningis the visible, dramatic event of atmospheric electricity, currents flow all around us every day. Such "fair weather" electricity is the return part of the circuitry for all the Lightningin the world, and could be an indicator of other global phenomena as well.
Sept. 29, 1999
Another fabulous discovery from Chandra X-ray Observatoryshows a bright ring of fire around the pulsar at the heart of the Crab Nebula. Scientists believe this is a link between the Crab's powerhouse and its light show.
April 6, 1999
The concept of ion propulsion, currently being demonstrated on the Deep Space 1mission, goes back to the very beginning of NASA and beyond. The path from concept to reality has not been short or direct, but it has been interesting.