Sept. 28, 1999
A brilliant ring around a cosmic powerhouse at the heart of the Crab Nebula will be revealed today in new images to be released from the Chandra X-ray Observatory. The Crab is one of the most beautiful - and most studied - bodies in the skies, and serves as a Rosetta Stone for modern astrophysics.
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.
April 29, 1999
NASA's Mars Global Surveyor has discovered surprising new evidence of past movement of the Martian crust, suggesting that ancient Mars was a more dynamic, Earth-like planet than it is today.
Sept. 22, 1999
A prodigious eruption of X-rays from near the center of our Milky Way announces the latest round of activity in a binary star system containing a variable star and a compact object. It's put astronomers and observatories on the ground and in space hot on the trail of an object known as GM Sgr.
Jan. 12, 1999
A rocket set to study Space Weathereffects will launch from above the arctic circle very soon if all goes well.
Aug. 6, 1999
On a balloon flight, scientists will attempt to capture particles from the stratosphere during the Perseids meteor shower, some possibly from the Perseids themselves.
Jan. 8, 1999
A new method of analyzing Gamma-ray Burstsby plotting color-color diagrams shows that there could be as many as five different kinds of these cosmic explosions.
March 11, 1999
NASA/Marshall's "Life on the Edge" program began in earnest last month when a dog sled team delivered 50 lb. of yeast and other microbes to a 13,000 ft summit in California's White Mountains.
Aug. 12, 1999
A NASA scientist views the eclipse from the foothills of Transylvania, home of ancient legends and modern science. Includes video replays from NASA TV and an audio account of the eclipse as seen from Romania.
Sept. 28, 1999