April 5, 1999
Eight years ago today NASA launched the Compton Gamma Ray Observatory. While the CGRO has revolutionized our understanding of cosmic gamma ray bursts, these distant explosions remain one of the biggest mysteries of modern astrophysics.
Aug. 10, 1999
Serious eclipse science is planned near home of legendary monster.
April 16, 1999
Science mimics science fiction as a Rensselaer Professor builds and tests a working model flying disc. The disc, or "Lightcraft," is an early prototype for Earth-friendly spacecraft of the future.
July 30, 1999
While professionals watch for a nearly transparent cloud of water vapor, amateurs will monitor the Moon's south pole for visible signs of Lunar Prospector's crash.
June 8, 1999
Scientists discuss what they know about lightning's effects on spacecraft and aircraft.
Dec. 19, 1999
A bigger, brighter Moon will herald the beginning of northern winter on Dec. 22, 1999 as lunar perigee, the winter solstice, and the full Moon all happen within a 10 hour period.
Feb. 26, 1999
As February winds down with no full moon at all, sky watchers are looking forward to two full moons in March and the second Blue Moon of 1999.
Jan. 12, 1999
An updated 20-year trend in atmospheric temperatures is unveiled at 1999 American Meteorological Society Meeting this week. These new results are corrected for orbital decay and drift of the nine satellites used to obtain the temperature measurements.
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. 24, 1999
Who cares if it rains and the fish get wet? A Pacific Ocean rainfall experiment will have implications for global weather studies.