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Aerial shot of communications workers repairing telecommunications towers
The Special Astrophysical Observatory with milky way stars in the sky during nighttime
James Webb Telescope in outer space on orbit of Earth planet. Sci-fi space collage. Astronomy science
A sextant is a marine navigation instrument which is used to measure the angle between two objects.
Frederick C. Gillett Gemini North telescope open for evening viewing just as stars begin to emerge in sky on the summit of Mauna Kea. Hawaii, USA.
Helioscope and telescope in observatory
Mobile military radar unit for air surveillance.
SAN JOSE, CALIFORNIA - CIRCA OCTOBER, 2021: Lick Observatory astronomical facility. Lick Observatory's Shane 120-inch telescope in the center with nearby Automated Planet Finder 100-inch reflector
Satellite Blueprint. High resolution digitally generated image
The historical 36-inch Shane telescope at Lick Observatory, Mount Hamilton ready for night sky viewing; San Jose, south San Francisco bay
telescope of the pico dos dias observatory MG Brasil
closeup view on oculars of large professional telescope located indoors
Griffith Observatory is an observatory in Los Angeles, California, USA.
Astronomical Observatory of Calar Alto in southern Spain, there are pine forests and the sky is clear
Coin operated viewer in front of beautiful landscape from the top of Bear Mountain in New York
Los Angeles, California - November 19, 2017:  People view the Hollywood hills at sunset from atop Griffith Observatory, near the dome housing a Zeiss 12-inch refracting telescope.
Observatory at night with star trails in the background. Long exposure with star trails.
A view of the night sky in Los Angeles as seen from the observatory
A night sky full of stars and an observatory on Ishigaki island.
Big astronomical telescope in observatory for science research od space and celestial objects.
The mount hamilton observatory at night with stars in the night sky. A laser is shooting up out of the observatory dome.
Mt Hamilton, CA, USA - May 28, 2023: Road leading to Shane telescope, and building housing the telescope, part of the Lick Observatory
The Tortugas Mountain Observatory is an astronomical observatory owned and operated by New Mexico State University.  It was built in 1963 to observe the planets.  Regular use of the observatory ceased around 1999 but the equipment was never dismantled.  In 2010 efforts were made to reestablish the observatory.  As of 2011 the work was still on-going.  The observatory is located on Tortugas Mountain near Las Cruces, New Mexico, USA.
in Quebec, Canada
Space Observatory on the top of the Mount Haleakala Volcano. At 10,000 feet elevation above sea level, Haleakala Observatory is above one third of the earth's atmosphere. Maui, Hawaii, USA. Edited desaturated colors.
beautiful milky way
Three satellite dishes perched high atop the deck of a vessel used in tracking rocket trajectories.  Long exposure in twilight.
Williams Bay, Wisconsin USA - July 3rd, 2023: Yerkes Observatory owned by The University of Chicago holds the world's largest refracting telescope once used by U.S. Government and NASA.
An observatory at night with stars and the comet Neowise in the background. Dark sky in the background.
Free Images: "bestof:Astronomical Studies Extended by New Navy Radio Telescope. Workmen lower the last section of the Naval Research Laboratory’s 600-inch “radio telescope”"
US_Navy_110908-N-PO203-214_Dr._Michael_Kassner,_director_of_research_for_the_Office_of_Naval_Research,_provides_an_overview_of_naval_science,_techn.jpg
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Home_of_one_of_the_workmen_employed_by_Southern_Potteries,_at_Elroy,_Tennessee,_November_1933.jpg
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View_of_more_farm_land_purchased_by_the_TVA._This_land_will_be_used_as_a_poultry_and_gardening_demonstration_center,_November_1933.jpg
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Radio._RCA_Victor._Coil_winder_-_If_a_girl_has_good_fingers_for_this_work,_she_can_become_expert_on_this_job_in_three_weeks._If_she_is_not_naturally_deft,_she_never_learns,_March_1937.jpg
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US_Navy_030826-N-9593R-043_Personnel_at_the_U.S._Naval_Observatory_in_Washington,_D.C.,_prepare_the_facility's_historic_26-inch_refractor_telescope_for_optical_viewing_of_Mars.jpg
US_Navy_090226-N-9584H-018_Construction_Electrician_Constructionman_Greg_Langdon,_assigned_to_Naval_Mobile_Construction_Battalion_(NMCB)_1,_installs_a_new_section_of_drill_steel_during_a_water_well_drilling_operation.jpg
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US_Navy_070403-N-0696M-096_Chief_of_Naval_Operations_(CNO)_Adm._Mike_Mullen_answers_questions_presented_by_Vice_President_and_Director,_Foreign_Policy_Studies_Brookings_Institution,_Carlos_Pascual.jpg
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Alvin_(DSV-2)_gets_refitted_with_new_personal_sphere.jpg
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US_Navy_101104-N-7676W-123_Secretary_of_the_Navy_Ray_Mabus_visits_a_new_community_learning_center_in_New_York.jpg
US_Navy_101104-N-7676W-067_Secretary_of_the_Navy_Ray_Mabus,_watches_New_York_school_children_build_a_laser_maze_during_the_opening_of_a_new_communi.jpg
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US_Navy_090519-N-7676W-106_Dr._William_D._Phillips,_from_the_National_Institute_of_Standards_and_Technology_and_recipient_of_the_1997_Nobel_Prize_in_physics,_demonstrates_the_effects_of_liquid_nitrogen_on_balloons.jpg
US_Navy_101104-N-5549O-121_ecretary_of_the_Navy_(SECNAV)_the_Honorable_Ray_Mabus_delivers_remarks_during_the_opening_of_the_Iridescent-ONR_science.jpg
US_Navy_101104-N-5549O-147_Secretary_of_the_Navy_(SECNAV)_the_Honorable_Ray_Mabus_cuts_the_ribbon_during_the_opening_of_the_Iridescent-ONR_science.jpg
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Capt._Edward_J._Steichen,_USNR,_(retired),_photographic_expert,_on_island_platform,_studies_his_surroundings_for_one_of_his_outstanding_photographs_of_life_aboard_an_aircraft_carrier._Capt._Steichen_held_the_rank_of_Comdr._at_this_time.,_ca._11/1943.gif
Lcdr._John_R._Madison_prepares_to_go_up_ladder_from_control_room_of_USS_Muskallunge_(SS_262)_at_submarine_base_New_London,_Connecticut._Lt._William_B._Robb_is_at_his_station.,_08/1943.gif
New_York_City_celebrating_the_surrender_of_Japan._They_threw_anything_and_kissed_anybody_in_Times_Square.,_08/14/1945.gif
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Office of Naval Research exhibit in New York 120525-N-PO203-082.jpg
US_Navy_090506-N-0000X-002_The_new_Naval_Medical_Research_Unit_San_Antonio_logo_command_logo.jpg
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US_Navy_090506-N-2038H-004_Dignitaries_unveil_the_new_Naval_Medical_Research_Unit_San_Antonio_logo.jpg
US_Navy_090916-N-9999K-003_The_Office_of_Naval_Research's_Advanced_Gun_Barrel_Technology_Program_demonstrates_a_new_coating_to_extend_155-mm_barrel_life_during_a_test_demonstration.jpg
US_Navy_050524-N-7676W-052_The_Office_of_Naval_Research_vessel_(ONR)_YP-679,_Afloat_Lab,_prepares_to_dock_at_the_South_Street_Seaport_in_preparation_for_New_York_City's_18th_annual_Fleet_Week.jpg
US_Navy_100527-N-0000B-016_Office_of_Naval_Research_(ONR)_Command_Master_Chief_Charles_Ziervogel,_bottom,_and_Fox_News_reporter_Peter_Doocy_demonstrate_the_capabilities_the_ONR_funded_Atlas_Power_Ascender_during_Fleet_Week_New.jpg
US_Navy_110902-N-AW342-071_Tugboats_from_Naval_Submarine_Base_New_London_assist_the_Los_Angeles-class_attack_submarine_USS_Passadena_(SSN_752)_the.jpg
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