Kitt Peak Observatory
Kitt Peak National Observatory
Kitt Peak National Observatory domes
Kitt Peak National Observatory dome
Star trails over Mayall 4-metre telescope at KPNO
McMath-Pierce Solar Telescope
WIYN 0.9-metre telescope at KPNO
Gemini North telescope, Hawaii
Milky way and observatories, Hawaii
Evolution of Tucson city lights, 1959 to 2003
Mayall 4-metre telescope at KPNO
Open star cluster M39
Kitt Peak Public Observatory
Telescopes at dusk, La Palma
Kitt Peak National Observatory, low angle view
Total lunar eclipse
Observatory
European Southern Observatory, La Silla, Chile
Elephant's Trunk Nebula, optical image
Supernova remnant G70.5+1.9, optical image
Galaxy NGC 4753
Southern and northern hemisphere night skies, composite image
MAGIC telescope and Milky Way
Halo over Kitt Peak National Observatory, Arizona, USA
Kitt Peak
Milky Way over Kitt Peak Observatory, USA
Night sky over Kitt Peak Observatory, USA
Moon and planets over MAGIC Telescope, Canary Islands
Orion and observatories, Hawaii
VLT Laser Guide Star Facility
Milky Way over the Atacama desert
Flaming Star Nebula
Harvest Moonrise over Dinosaur Park, Alberta, Canada
Royal Observatory Greenwich
Very Large Telescope at night
ALMA telescopes at night
McGraw-Hill Telescope interior, Arizona, USA
WIYN 3.5-metre Telescope, Arizona, USA
Astronomy gathering
Kitt Peak National Observatory telescopes
Hale Bopp and observatories, Hawaii
天体観測所
Centaurus over La Silla Observatory
Starry night above Ali observatory, Tibet, China
Galaxy cluster, composite image
Very Large Telescope, Paranal Observatory, Chile
1.52-metre telescope, La Silla Observatory, Chile
Twilight Stargazing
SPECULOOS Southern Observatory, Chile
Swedish-ESO Submillimetre Telescope at night
Star trails above the BlackGEM optical telescope array
Planetarium
Hydra telescopic spectrograph device focal plane
Milky Way over Kitt Peak Observatory
Airglow above La Silla Observatory, Chile
Visible and Infrared Survey Telescope for Astronomy, Chile
Orion over Kitt Peak Observatory, USA
ExTrA telescopes at night
ALMA telescopes under stars
Solar eclipse
Paranal Observatory at dusk, Chile
Paranal Observatory under star trails
Iridium Flares
アラスカ フェアバンクス 春の薄暮のオーロラ
Star trails
Milky Way above Ali observatory, Tibet, China
Andromeda galaxy
Star cluster NGC 6520
Globular cluster M13
Seyfert galaxy NGC 1365
Spiral galaxy NGC 2841
La Silla Observatory at night, Chile
Perigean Supermoon
Rising full Snow Moon
Moon and Venus
Mars and La Silla Observatory, Chile
Northern stars over GTC Observatory, La Palma, Canary Islands
Veil Nebula supernova remnant
SOFIA airborne observatory in flight
Swedish-ESO-Submillimetre Telescope and Milky Way
Towers for the BlackGEM telescope at night
Man standing on platform at night, Chile
ExTrA telescopes at night, Chile
Laser guide star, VLT, Chile
ALMA radio telescope at night, Chile
New Technology Telescope at night, Chile
Swedish-ESO Submillimetre telescope
Noctilucent clouds
Blanco 4-metre telescope dome at CTIO
WIYN 3.5-metre telescope dome at KPNO
SOFIA airborne observatory aircraft
Comet Lovejoy, La Silla Observatory, Chile
Milky Way over Roque de los Muchachos Observatory
Paranal Observatory at sunset
Moon over Prudhoe Bay
夕焼けの灯台
Orion over the Georgia Strait, Canada
The Milky Way Across Starry Sky Above Mountains
灯台
Zodiacal light over an Atlantic coastline
Comet NEOWISE at twilight, July 2020
Arc of noctilucent clouds
Fragment of noctilucent clouds
Jupiter, Saturn and the Milky Way at twilight
Noctilucent clouds at dawn
Noctilucent clouds in twilight
Circumpolar star trails with noctilucent clouds
Very Large Telescope at night, Chile
Observatory telescopes with the Milky Way, full-dome image
Observatory telescopes with star trails, full-dome image
Telescopes at an observatory with the Milky Way
Vera C Rubin Observatory, Chile, fishyeye view at night
Night sky view over Cerro Tololo Observatory, Chile
Tatel radio telescope
Full Moon over Monsaraz Castle, Portugal
Moon and Venus over St. Stephen's Cathedral, Passau, Germany
Star Party 2021, Alberta, Canada
おおぐま座と天体観測所
La Silla ESO observatory
Kitt Peak National Observatory during a lunar eclipse
The dome of the Canada-France-Hawaii Telescope
Gemini South and SOAR telescopes at night, Chile
Amateur astronomers
ALMA radio astronomy telescopes
Mayall 4-meter Telescope at night, Arizona, USA
Stars over the Atacama Desert, Chile at sunset
Milky Way over Palomar Observatory
Milky Way seen from both hemispheres, composite photograph
Milky Way over Sliding Spring Observatory
Rising full Moon
Milky Way over observatory
Gemini North telescope
Moon and Venus over observatory
Riometer radio antennae
Man staring at the night sky, Atacama Desert, Chile
Moon and Venus at night, La Silla, Chile
Man staring at the Milky Way at night
Danish 1.54-metre telescope, Chile