Archived Project Websites
These websites are kept for archival purposes only and are no longer updated.
Servicing Mission 3A successfully replaced equipment and performed maintenance upgrades to the Hubble Space Telescope.
Servicing Mission 3B is actually the fourth visit to Hubble. NASA split the original Servicing Mission 3 into two parts and conducted 3A in December of 1999. The crew of Space Shuttle Columbia conducted Servicing Mission 3B in February 2002 and performed five spacewalks over an 11-day mission.
Launched in April 1990 and with almost 20 years of historic and trailblazing science already accomplished, the Hubble Space Telescope was reborn with Servicing Mission 4 (SM4).
The Goddard ISOMAX experiment was a state-of-the art superconducting magnetic mass spectrometer constructed for the purpose of measuring the abundance of isotopes in the cosmic radiation. Cosmic radiation is the term used for high energy particles coming from the Sun, the Galaxy, and beyond.
MGEANT is a CERNLIB/GEANT based generic multi-purpose Monte-Carlo simulation package appropriate for gamma-ray astronomy which allows the rapid prototyping of a wide variety of detector systems.
Even at night, the Earth's atmosphere glows from reflected starlight, moonlight, man-made ultraviolet (UV) light and molecular processes. This instrument was designed to measure this UV "nightglow", hence the mission name, NIGHTGLOW!
OWL (Orbiting Wide-angle Light collectors) was a proposed space-based mission to determine the energy, direction and interaction characteristics of large numbers of high energy cosmic rays.
TIGER (Trans-Iron Galactic Element Recorder) was a balloon-borne NASA instrument that had three successful flights: one from Fort Sumner, NM (summer of 1997), and two from Antarctica (December 2001 - January 2002 and December 2003 - January 2004). The TIGER instrument measured the elemental composition of cosmic rays heavier than iron.
XRS-2 was a new generation of X-Ray Spectrometer. It was to measure the spectrum of celestial objects in the "soft" X-ray range (200 to 10,000 eV), to much higher resolution than has been possible up to now.