AIR GLOW

PIN HOLE DIFFRACTION

RADIO TELESCOPE

ARECIBO RADIO OBSERVATORY

VLA SICORRO, NM

ALMA ATACAMA MILLIMETER ARRAY

PALOMAR 200” HALE TELESCOPE

LARGE BINARY TELESCOPE

VLT

ALMA ATACAMA MILLIMETER ARRAY

SEGMENTED MIRROR

GRAND CANARY TELESCOPE

THIRTY METER TELESCOPE

EXTREMELY LARGE TELESCOPE

LARGE TELESCOPE APERTURES

COMPTON GAMMA RAY OBSERVATORY

HUBBLE SPACE TELESCOPE

CHANDRA X-RAY TELESCOPE

GRAZING INCIDENCE MIRROR

SPITZER INFRARED TELESCOPE

JAMES WEBB TELESCOPE

JAMES WEBB SEGMENTED MIRROR

LAGRANGIAN POINTS