Feb. 12, 1999
NASA's next Great Observatory, the Chandra x-ray telescope, moved one step closer to launch this week after being installed in a clean room for final tests and other work at the Kennedy Space Center.
Feb. 10, 1999
Astronomers have released a new Hubble photograph of a gamma-ray burst's fading optical counterpart. The relic fireball appears to be embedded in a faint, irregular galaxy.
Feb. 9, 1999
Tests prove approach for a new gamma-ray telescope. The design will compete against others in Washington today.
Feb. 9, 1999
Dramatic new Hubble images show vast stellar disks where planets are born.
Feb. 5, 1999
Aerogel will take its next ride into space on Stardust, launching this weekend. With aerogel, scientists hope to capture dust samples from comet Wild and return them to Earth. However, aerogel has many more applications, from super insulation to computing.
Feb. 4, 1999
The Stardust spacecraft is poised to blast off on a rendezvous with a comet - and set to bring back pieces of the comet's coma to Earth.
Feb. 2, 1999
The Galileo spacecraft executed a close flyby of Jupiter's moon Europa this weekend. Recent images strengthen the evidence for a liquid ocean beneath Europa's frozen crust and reveal new surface features in 3D.
Jan. 29, 1999
With new discoveries coming at an ever-quickening pace, scientists review the history of this new branch of Astrophysicsand its implications for understanding our universe.
Jan. 27, 1999
For the first time, images of visible light from a cosmic explosion are captured by a robotic telescope while spectacular gamma-ray data are captured by orbiting satellites.
Jan. 22, 1999
Using a propulsive tether concept, spacecraft may be able to brake or boost their orbits without using onboard fuel. A NASA/Marshall project, named "ProSEDS," is slated to demonstrate braking, by accelerating an expended rocket toward re-entry.