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1970

Uhuru, the first x-ray space telescope is launched on December 12 and during its four-year life, it discovers 270 x-ray sources across the sky

1978

The IUE (International Ultraviolet Explorer) begins an 18-year mission, and it is the first satellite that astronomers can operate in real time

1983

The first infrared space telescope is launched on January 25—IRAS (Infrared Astronomical Satellite) is able to survey the entire sky

1990s

The microwave space telescope COBE (Cosmic Background Explorer) operates during the early part of the decade and detects the heat left over from the Big Bang

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02: It was launched on May 14,2009 on board Ariane 5 from Kourou, French Guiana.

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The Herschel Space Observatory is the most powerful infrared telescope ever to operate in space.

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Herschel Space Observatory

03: The telescope is orbiting the Sun 932,057 miles (1.5 million km) from Earth, facing away from the Sun

Herschel is around 24.6 ft (7.5 m) high and 13.1 ft (4 m) wide Its main mirror is 11.5 ft (3.5 m) wide.

05: It is studying dusty and cold regions of space to learn morę about the origin and evolution of stars and galaxies.

Data from the telescope is transmitted every day to an antenna in New Norcia, Australia