Linked from
The 84 pages that link to James Webb Space Telescope, each with the reason it gives.
Hubble Space TelescopeCompared with: Webb observes longer infrared wavelengths and operates much farther from Earth than Hubble.
Very Large TelescopeCompared with: Webb avoids atmospheric distortion and observes infrared wavelengths unavailable to the VLT from the ground.
Chandra X-ray ObservatoryCompared with: Webb traces infrared light from dust and distant galaxies, complementing Chandra’s view of hot, energetic matter.
Herschel Space ObservatoryCompared with: Webb extends infrared studies with greater sensitivity at shorter wavelengths, rather than replacing Herschel’s far-infrared reach.
GaiaCompared with: Unlike Gaia’s astrometric survey, Webb studies faint and distant objects in detail.
Spitzer Space TelescopeCompared with: Webb succeeded Spitzer’s role in infrared research with a larger mirror and different instruments.
Euclid (space telescope)Compared with: Webb prioritizes depth on selected targets, while Euclid prioritizes coverage of vast sky areas.
Extremely Large TelescopeCompared with: JWST avoids atmospheric distortion, while the ELT offers a much larger ground-based aperture.
Subaru TelescopeCompared with: Webb avoids atmospheric interference, while Subaru offers ground-based access and wide surveys.
Wide-field Infrared Survey ExplorerCompared with: JWST provides deeper, detailed views of chosen regions, unlike WISE’s broad, comparatively shallow survey.
Hubble Ultra-Deep FieldCompared with: Its infrared observations extend deep-field studies to earlier and fainter galaxies.
Giant Magellan TelescopeCompared with: Webb avoids atmospheric distortion, while the Giant Magellan Telescope uses a much larger ground-based aperture.