Discovering the Universe
International Ultraviolet Explorer (IUE)
The International Ultraviolet Explorer (IUE) satellite was launched on the 26th of January 1978. IUE is a joint project between NASA, PPARC and ESA.

URL --> http://www.vilspa.esa.es/iue/iue.html

Infrared Astronomical Satellite (IRAS)
Infrared Astronomical Satellite (IRAS) Archive

URL --> http://bolero.gsfc.nasa.gov/astro/iras/iras_home.html

Extreme Ultraviolet Explorer (EUVE)
The Extreme Ultraviolet Explorer (EUVE) is a NASA-funded astronomy mission operating in the largely unexplored extreme ultraviolet band. The science payload, consists of three grazing incidence scanning telescopes and an extreme ultraviolet (EUV) spectrometer/deep survey instrument.

URL --> http://www.cea.berkeley.edu/html/sat_homepage.html

Hubble Space Telescope (HST)
Space Telescope Electronic Information Service

URL --> http://www.stsci.edu/

Project Apollo
THAT'S ONE SMALL STEP FOR A MAN, ONE GIANT LEAP FOR MANKIND.... Project Apollo home page at Kennedy Space Center.

URL --> http://www.ksc.nasa.gov/history/apollo/apollo.html

Mariner 2
Mariner 2 was the world's first successful interplanetary spacecraft. Launched August 27, 1962, Mariner 2 passed within about 34,000 kilometers (21,000 miles) of Venus. Mariner 2 provided valuable new information about interplanetary space and the Venusian atmosphere.

URL --> http://www.jpl.nasa.gov/mip/mnr2.html

Mariner 10
The mission of MARINER 10 was the first to explore the planet Mercury. It was also the first American spacecraft to take photographs of Venus.

URL --> http://pdc.jpl.nasa.gov/Mariner10/Mariner10.html

Magellan
Launched from the Space Shuttle Atlantis in May 1989 Magellan arrived at Venus in August 1990. For the next four years the spacecraft used its sophisticated imaging radar to make a highly detailed map of Venus.

URL --> http://NewProducts.jpl.nasa.gov/magellan/

Viking
The first robotic spacecraft to land on Mars -- the Vikings -- were sent on a mission in 1975 to determine whether life had ever existed in any primitive biological form on the red planet.

URL --> http://nssdc.gsfc.nasa.gov/planetary/viking.html

Voyager
Voyager Project Home Page

URL --> http://vraptor.jpl.nasa.gov/voyager/voyager.html

Galileo
The Galileo Project is a NASA unmanned mission to explore the planet Jupiter and its surrounding moons and magnetosphere.

URL --> http://www.jpl.nasa.gov/galileo/index.html

Pioneer
Launched on 2 March 1972, Pioneer 10 was the first spacecraft to travel through the Asteroid belt, and the first spacecraft to make direct observations and obtain closeup images of Jupiter. Launched on 5 April 1973, Pioneer 11 followed its sister ship to Jupiter (1974), made the first direct observations of Saturn (1979), and studied energetic particles in the outer heliosphere.

URL --> http://pyroeis.arc.nasa.gov/pioneer/PNhome.html

Hipparcos
The Hipparcos spacecraft was dedicated to the precise measurement of the positions, parallaxes and proper motions of the stars. Launched in August 1989 the satellite collected more than three years of extremely high-quality scientific data. Communications were terminated with the satellite in August 1993.

URL --> http://astro.estec.esa.nl/SA-general/Projects/Hipparcos/hipparcos.html

Uhuru
Uhuru, also known as the Small Astronomical Satellite 1 (SAS-1) was the first earth-orbiting mission dedicated entirely to celestial X-ray astronomy. It was launched on December 12, 1970. The mission ended in March 1973.

URL --> http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/uhuru.html

Cosmic Background Explorer (COBE)
Launched on November 18, 1989 the COBE satellite was developed by NASA's Goddard Space Flight Center to measure the diffuse infrared and microwave radiation from the early universe.

URL --> http://www.gsfc.nasa.gov/astro/cobe/cobe_home.html

Solar & Heliospheric Observatory (SOHO)
The SOHO project is being carried out by the European Space Agency (ESA) and NASA as a cooperative effort between the two agencies in the framework of the Solar Terrestrial Science Program (STSP).

URL --> http://sohowww.nascom.nasa.gov/

Space Shuttle
The NASA Space Shuttle Web Archives

URL --> http://shuttle.nasa.gov/

Italian Space Project SAX
The Italian X-Ray Astronomy Satellite (SAX) is a project to investigate galactic and extragalactic X-ray sources.

URL --> http://www.sdc.asi.it/sax_main.html

Ulysses Mission
Expanding gasses from the solar corona dominate the properties of interstellar space over a large region around the Sun known as the heliosphere. NASA's Ulysses mission is for the first time exploring the high latitude heliosphere away from the plane of the ecliptic and over the solar poles.

URL --> http://ulysses.jpl.nasa.gov/

NASA Ames Research Center
Voyager fly-by planetary images from the NASA Ames Research Center

URL --> ftp://ames.arc.nasa.gov/pub/GIF/

Institute for Telecommunications Research, University of South Australia
Launch manifests, records and other general information

URL --> ftp://audrey.levels.unisa.edu.au/space/

Penn State Astronomy Department
HEAO, ROSAT, and Ginga information

URL --> ftp://ftp.astro.psu.edu/pub/

NASA Johnson Space Center
Images from U.S.-crewed spaceflights

URL --> ftp://images.jsc.nasa.gov/pao/

Jet Propulsion Laboratory (JPL)
Satellite elements and spacecraft information

URL --> ftp://kilroy.jpl.nasa.gov/pub/space/


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Discovering the Universe, March 1996
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