Similar to Multi-site_All-Sky_Camera

SOPHIE échelle spectrograph

Terrestrial Planet Finder

TRAPPIST

Origins Space Telescope

CHEOPS

Kepler space telescope

High Accuracy Radial Velocity Planet Searcher

Darwin (spacecraft)

PLATO (spacecraft)

Planet Hunters

ARIEL

Sloan Digital Sky Survey

Chelyabinsk meteor

2dF Galaxy Redshift Survey

2MASS

Thirty Meter Telescope protests

Five-hundred-meter Aperture Spherical Telescope

AURIGA

B612 Foundation

BATTeRS

CfA Redshift Survey

Telescope

List of largest optical refracting telescopes

Overwhelmingly Large Telescope

Achromatic lens

Anastigmat

Aplanatic lens