Oct. 13, 1999
The July 31, 1999 crash of Lunar Prospector into The Moondid not liberate detectable signs of water, say scientists. The possibility of water-ice in shadowed lunar craters remains open.
June 3, 1999
NASA's first mission to The Moonin 25 years could end with a splash next month when ground controllers deliberately crash Lunar Prospector into a crater in search of water.
Sept. 13, 1999
The X-ray Observatory's High Resolution Camera catches its first light - resulting in extraordinary pictures of a distant supernova remnant.
April 15, 1999
Astronomers from four institutions are announcing today their discovery of the first system of planets found orbiting a sun-like star in Andromeda.
May 23, 1999
In only one week since the release of free SETI@home software, nearly 300,000 computers have contributed 1100 years of CPU time to the search for extraterrestrial life.
May 27, 1999
New data from Mars Global Surveyor reveals the topography of Mars better than many continental regions on Earth.
June 9, 1999
At the International Conference on Atmospheric Electricity this week, a New Mexico research team reports they have developed a system to depict Lightningin three dimensions.
Nov. 19, 1999
With another Io flyby less than a week away, JPL has released new data showing towering mountains, sizzling hot spots, and enormous lava lakes on Jupiter's fiery moon.
Nov. 5, 1999
New images from Galileo reveal unexpected details of the Prometheus volcano on Io including a caldera and lava flowing through fields of sulfur dioxide snow.
July 19, 1999
Scientists believe a sudden slowdown of a spinning neutron star is due to a massive starquake and a huge release of gamma-ray energy.