Irdische Teleskope (in Bau oder geplant)

Very Large Telescope Interferometer VLTI (in Bau)
Gran Telescopio Canarias GTC (in Bau)
Hobby-Eberly-Telescope HET (in Bau)
Giant Magellan Telescope GMT (in Bau)
Overwhelmingly Large Telescope OWL (Studie)
California Extremely Large Telescope CELT (Studie)
Euro50 (Studie)
Atacama Large Millimeter Array ALMA (in Bau)