Infrared Space Observatory

Target entity: Infrared Space Observatory
Context triple: [Herschel Space Observatory, predecessor, Infrared Space Observatory]

• A. Herschel Space Observatory
  The Herschel Space Observatory was a European Space Agency space telescope that studied the universe in far-infrared and submillimetre wavelengths, revealing cold and dusty regions such as star-forming clouds and distant galaxies.
• B. Infrared Astronomical Satellite
  The Infrared Astronomical Satellite (IRAS) was a pioneering space telescope launched in 1983 that conducted the first-ever all-sky survey at infrared wavelengths, dramatically expanding knowledge of stars, galaxies, and cosmic dust.
• C. International Ultraviolet Explorer
  The International Ultraviolet Explorer was a space telescope launched in 1978 that provided pioneering ultraviolet observations of astronomical objects for nearly two decades.
• D. Einstein Observatory
  The Einstein Observatory was NASA’s first fully imaging X-ray telescope in space, pioneering high-resolution X-ray astronomy of cosmic sources.
• E. Extreme Ultraviolet Explorer
  Extreme Ultraviolet Explorer was a NASA space telescope mission that operated in the extreme ultraviolet wavelength range to study hot stars, white dwarfs, and the interstellar medium.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Infrared Space Observatory
Target entity description: The Infrared Space Observatory was a European Space Agency satellite launched in 1995 that conducted pioneering astronomical observations in the infrared spectrum, greatly advancing the study of cool and dust-obscured objects in the universe.

• A. Herschel Space Observatory
  The Herschel Space Observatory was a European Space Agency space telescope that studied the universe in far-infrared and submillimetre wavelengths, revealing cold and dusty regions such as star-forming clouds and distant galaxies.
• B. Infrared Astronomical Satellite
  The Infrared Astronomical Satellite (IRAS) was a pioneering space telescope launched in 1983 that conducted the first-ever all-sky survey at infrared wavelengths, dramatically expanding knowledge of stars, galaxies, and cosmic dust.
• C. International Ultraviolet Explorer
  The International Ultraviolet Explorer was a space telescope launched in 1978 that provided pioneering ultraviolet observations of astronomical objects for nearly two decades.
• D. Einstein Observatory
  The Einstein Observatory was NASA’s first fully imaging X-ray telescope in space, pioneering high-resolution X-ray astronomy of cosmic sources.
• E. Extreme Ultraviolet Explorer
  Extreme Ultraviolet Explorer was a NASA space telescope mission that operated in the extreme ultraviolet wavelength range to study hot stars, white dwarfs, and the interstellar medium.
• F. None of above. chosen