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NASA'S PLANET HUNTER TESS COMPLETES PRIMARY MISSION

NASA'S PLANET HUNTER TESS COMPLETES PRIMARY MISSION

Context

Recently NASA’s Transiting Exoplanet Survey Satellite (TESS) finished its primary mission

Details

  • Transiting Exoplanet Survey Satellite has found 66 new exoplanets, or worlds beyond the solar system.
  • It used to monitor 24-by-96-degree strips of the sky which were called by sectors for a month using its four cameras.

About Transiting Exoplanet Survey Satellite (TESS)

  • It is a space telescope for NASA's Explorers program.
  • It was designed to search for exoplanets using the transit method in an area 400 times larger than that covered by the Kepler mission.

About Exo-planets

  • These are the planets that orbit around other stars.
  • They are very hard to see directly with telescopes.
  • They are hidden by the bright glare of the stars they orbit.

About Kepler Mission

It was a space telescope launched by NASA to discover Earth-size planets orbiting other stars.

Objectives of Kepler Mission

  • To determine the percentage of terrestrial and larger planets which are in or near the habitable zone of a wide variety of stars
  • To determine the distribution of sizes and shapes of the orbits of these planets
  • To estimate number of  planets there are in multiple-star systems
  • To determine the variety of orbit sizes and planet reflectivities, sizes, masses and densities of short-period giant planets
  • To determine the properties of stars that harbors planetary systems.

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