ALEXIS, - Array of Low Energy X-Ray Imaging Sensors
Launch Date: April 25, 1993, Decommissioned: April 29, 2005

Algonquin Radio Observatory,

Allegheny Observatory,

ALMA (the Atacama Large Millimeter/submillimeter Array),

Apache Point Observatory,

Arecibo Observatory (NAIC) ,

ARIEL V,
Launch date: 5 October 1974, Operated until: 1980

ASCA, (Japan) / ASCA (NASA, USA) - The Advanced Satellite for Cosmolgy and Astrophysics
Launch Date: February 20, 1993, Control lost on July 14, 2000

AURA, - ASSOCIATION OF UNIVERSITIES FOR RESEARCH IN ASTRONOMY, INC.

AXAF, - The Advanced X-ray Astrophysics Facility, renamed CXO (Chandra X-Ray Observatory)

BeppoSAX - Satellite per Astronomia X "Beppo", / (NASA, USA)
Launch Date: April 30 1996, Switched off: May 2, 2002

BIMA, - BERKELEY ILLINOIS MARYLAND ASSOCIATION

Calar Alto Observatory,

Caltech Submillimeter Observatory (CSO),

Cassini Mission,
Launch Date: October 15, 1997

Centrum Astronomiczne im. Mikolaja Kopernika, (CAMK)
Nicolaus Copernicus Astronomical Center

Cerro Tololo Interamerican Observatory, (CTIO)

Chandra,
Launch Date: July 23, 1999

Compton Gamma-Ray Observatory, (CGRO)
Launch Date: April 05, 1991, Re-entered the Earth's atmosphere: June 4, 2000

Copernicus (OAO-3) - Mission,
Launch Date: 21 August 1972, operated till: February 1981

COS-B, (ESA)/ COS-B (NASA, USA)

Cosmic Hot Interstellar Plasma Spectrometer (CHIPS),
Launch Date: January 12, 2003, Terminated in April 2008

David Dunlap Observatory, University of Toronto, (DDO)

Deep Space Network (DSN) - NASA,

Discovery Program,

Dominion Astrophysical Observatory, (DAO)

Dominion Radio Astrophysical Observatory, (DRAO)

E-ELT - The European Extremely Large Telescope,

Effelsberg Radio Observatory,

Einstein (HEAO-2), - The second High Energy Astrophysical Observatory
Lifetime: 12 November 1978 - April 1981

ESA - European Space Agency,

ESO - European Southern Observatory,

Fermi Gamma-ray Space Telescope,
Launch Date: June 11, 2008

GALEX - Galaxy Evolution Explorer,
Launch Date: April 28, 2003

Galileo Project,
Launch Date:18 October 1989, End of Mission: 21 September 2003

Gemini Observatory,

Gravity Probe B (Stanford University), / Gravity Probe B (NASA)
Launch Date: 20 April 2004, Decommissioned: 8 December 2010

Hakucho [CORSA-b],
Lifetime : 21 February 1979 - 16 April 1985

HALCA, / MUSES-B - Highly Advanced Laboratory for Communications and Astronomy
Launch Date: February 12, 1997, Terminated: November 30 2005

HartRAO, - Hartebeesthoek Radio Astronomy Observatory

Hubble Space Telescope,
Launch Date: April 24, 1990

Huygens Probe,
Launch Date: October 15, 1997 08:43 UT, Mission End: 14 Jan 2005

Integral, (NASA) / Integral (ESA) International Gamma-Ray Astrophysics Laboratory
Launch Date: October 17, 2002

IUE, (STSCI) / IUE (ESA) - The International Ultraviolet Explorer Satellite
Launch Date: January 26, 1978, Terminated: September 30, 1996

Jodrell Bank Observatory,

Kepler,
Launch Date: March 06, 2009

Las Campanas Observatory,

Mars Odyssey,
Launch Date: April 07, 2001

NEAR Shoemaker - Near Earth Asteroid Rendezvous,
Launch Date: February 17, 1996, Last transmission: February 28, 2001

NOAO - National Optical Astronomy Observatories,

NRAO - National Radio Astronomy Observatory,

Planck, - (initially COBRAS/SAMBA) space observatory of the European Space Agency
Launch Date: May 14, 2009

ROSAT, (USA) / ROSAT(Germany) - ROentgen SATellite
Launch Date: June 01, 1990, Terminated: February 12, 1999

RXTE, - Rossi X-ray Timing Explorer
Launch Date: December 30, 1995

Solar Probe Plus,

Spectrum-X-Gamma, (SXG) (IKI, Russia) / Spectrum-X-Gamma (SXG) (USA)

Suzaku , (Japan) / Suzaku (NASA, USA)
Launch Date: July 10, 2005

Swift,
Launch Date: November 20, 2004

Vela-5B Satellite,
Launch Date: 23 May 1969, Terminated: 19 June 1979

Viking Mission (Viking 1-2),
Launch Date: (1)August 20, 1975, (2)September 9, 1975; End of communication: (1)November 13, 1982, (2)April 11, 1980

Voyager Mission,
Voyager 1 and 2 spacecraft, the longest continuously-operating spacecraft in deep space
Launch Date: (1)September 05, 1977, (2)August 20, 1977

VSOP, - VLBI Space Observatory Programme

WISE - Widefield Infrared Survey Explorer,
Launch Date: December 14, 2009, decommissioned in February 2011

WMAP - Wilkinson Microwave Anisotropy Probe,
Launch Date: June 30, 2001, Decommissioned: October of 2010

XMM-Newton, - The European Space Agency's (ESA) X-ray Multi-Mirror Mission
Launch Date: December 10, 1999