JWST

Science & Engineering abbreviation · Astronomy & Space

JWST
Stands forJames Webb Space Telescope
CategoriesScience & Engineering

JWST stands for James Webb Space Telescope, an astronomy & Space abbreviation.

Largest and most powerful space telescope ever launched, observing mainly in infrared light from an orbit around the Sun-Earth L2 point, 1.5 million kilometers from Earth. Its 6.5-meter mirror of 18 gold-coated beryllium segments studies the first galaxies, star birth and the atmospheres of exoplanets.

Example: JWST detected carbon dioxide in the atmosphere of the exoplanet WASP-39b.

Usage notes

A partnership of NASA, ESA and the Canadian Space Agency, it launched on an Ariane 5 rocket on December 25, 2021, and released its first full-color images on July 12, 2022. A tennis-court-sized sunshield keeps its instruments below about 50 kelvins. It is named after James E. Webb, NASA administrator from 1961 to 1968; the naming drew criticism over his tenure's record on gay and lesbian employees.

More astronomy & Space abbreviations

  • IAU – International Astronomical Union
  • ISRO – Indian Space Research Organisation
  • ISS – International Space Station
  • JAXA – Japan Aerospace Exploration Agency
  • JD – Julian date (Julian Day number)
  • JPL – Jet Propulsion Laboratory
  • KBO – Kuiper belt object
  • kpc – Kiloparsec
  • LCDM – Lambda cold dark matter
  • LEM – Lunar Excursion Module
  • LEO – Low Earth orbit
  • LISA – Laser Interferometer Space Antenna

See all 83 astronomy & Space abbreviations →