Spitzer Space Telescope

Spitzer Space Telescope
NASA/JPL-Caltech · Public domain · source
Name	Spitzer Space Telescope
Mission type	Space telescope
Operator	NASA / Jet Propulsion Laboratory
Launch date	August 25, 2003
Launch vehicle	Delta II
Launch site	Cape Canaveral Air Force Station
Mission duration	16 years
Deorbited	January 30, 2020

Spitzer Space Telescope is a NASA space telescope that was launched on August 25, 2003, from Cape Canaveral Air Force Station using a Delta II rocket, and was operated by the Jet Propulsion Laboratory in partnership with Ball Aerospace & Technologies and Lockheed Martin. The telescope was named after Lyman Spitzer, a renowned Princeton University astrophysicist who was a strong advocate for a space-based telescope. The Spitzer Space Telescope was designed to conduct infrared astronomy research, and its mission was managed by the NASA Science Mission Directorate in collaboration with the European Space Agency and the Canadian Space Agency. The telescope's development involved the work of several notable scientists, including Giovanni Fazio and Michael Werner, who made significant contributions to the field of infrared astronomy.

Introduction

The Spitzer Space Telescope was part of NASA's Great Observatories program, which also included the Hubble Space Telescope, the Compton Gamma Ray Observatory, and the Chandra X-ray Observatory. The telescope was designed to study the universe in infrared radiation, which allowed it to observe objects that were too cool or distant to be detected by other telescopes, such as the Hubble Space Telescope. The Spitzer Space Telescope was also used to study the formation of stars and galaxies in the early universe, and its observations were used to support the Big Bang theory. The telescope's findings were published in numerous scientific papers, including those in the Astrophysical Journal and the Astronomical Journal, and were presented at conferences such as the American Astronomical Society meeting.

Spacecraft Design and Instruments

The Spitzer Space Telescope was designed and built by Lockheed Martin and Ball Aerospace & Technologies, with the infrared telescope and instruments provided by the University of Arizona and the California Institute of Technology. The telescope had a primary mirror with a diameter of 85 centimeters, which was designed to collect infrared radiation from objects in the universe. The telescope was equipped with three instruments: the Infrared Array Camera (IRAC), the Infrared Spectrograph (IRS), and the Multiband Imaging Photometer for Spitzer (MIPS), which were designed to study the infrared spectrum of objects in the universe. The Spitzer Space Telescope was also equipped with a cryogenic cooling system developed by the Jet Propulsion Laboratory, which allowed the telescope to operate at very low temperatures, and was launched into a helio-centric orbit with the help of the United Launch Alliance.

Mission Overview and Timeline

The Spitzer Space Telescope was launched on August 25, 2003, and began its nominal mission in December 2003, with the goal of conducting a sky survey and observing a variety of astronomical objects, including stars, galaxies, and comets. The telescope's cryogenic cooling system was designed to last for 2.5 years, but it was able to operate for over 5 years, allowing the telescope to conduct a deep survey of the universe. In 2009, the telescope's cryogenic cooling system was depleted, and the telescope began its warm mission, which lasted until its decommissioning in 2020, during which time it was used to study near-Earth objects and exoplanets in collaboration with the European Space Agency's Gaia spacecraft and the NASA Exoplanet Archive. The Spitzer Space Telescope was also used to support the NASA Kepler mission and the Transiting Exoplanet Survey Satellite (TESS) mission.

Scientific Discoveries and Contributions

The Spitzer Space Telescope made several significant scientific discoveries during its mission, including the detection of exoplanets, the study of star formation and galaxy evolution, and the observation of comets and asteroids. The telescope's observations of the infrared spectrum of objects in the universe allowed scientists to study the composition and temperature of these objects, and its high-resolution images of the universe provided new insights into the formation and evolution of stars and galaxies. The Spitzer Space Telescope also made significant contributions to the study of dark matter and dark energy, and its observations were used to support the Lambda-CDM model of the universe. The telescope's findings were recognized with several awards, including the NASA Exceptional Service Medal and the American Astronomical Society's Henry Norris Russell Lectureship.

Operations and Legacy

The Spitzer Space Telescope was operated by the Jet Propulsion Laboratory in partnership with the NASA Science Mission Directorate and the European Space Agency. The telescope's mission operations were managed by the Spitzer Science Center at the California Institute of Technology, which was responsible for planning and executing the telescope's observation schedule. The Spitzer Space Telescope was decommissioned on January 30, 2020, after 16 years of operation, and its legacy continues to be felt in the field of astronomy, with its observations and discoveries remaining an important part of our understanding of the universe. The telescope's data archive is maintained by the NASA Astrophysics Data System and the Infrared Science Archive at the Infrared Processing and Analysis Center (IPAC), and its findings continue to be used by scientists around the world, including those at the Harvard-Smithsonian Center for Astrophysics and the University of California, Berkeley. The Spitzer Space Telescope's contributions to astronomy have been recognized by the National Academy of Sciences and the American Institute of Aeronautics and Astronautics, and its legacy will continue to inspire future generations of astronomers and engineers. Category:Astronomy