3,585 免费图片适用于公有领域

美洲科学动物意识建筑黑与白藍色细胞植物生物学

Astronaut Edwin E. Aldrin Jr., pilot for the Gemini-12 spaceflight, prepares to take a rest position during underwater zero-gravity training. Oct 29th, 1966.

公有领域宇航员

A drifting smoke plumes from the launch of Space Shuttle Atlantis appear to swirl above the Vehicle Assembly Building near sunset.

Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Living organisms under a microscopic view. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A United Launch Alliance Delta IV Heavy common booster core is about to be offloaded from the company's Mariner ship at Port Canaveral in Florida.

A 250-ton crane is used to lower the second half of the K-level work platforms for NASA’s Space Launch System (SLS) rocket into High Bay 3 inside the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida.

Tellima randiflora (Fringe Cups) enlarged 25 times from Urformen der Kunst (1928) by Karl Blossfeldt.

Influenza virus experimentation with eggs. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Ultrastructural morphology exhibited by coronaviruses similar to COVID-19 which became pandemic. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Cirsium Canum (Thistle) Flower Head enlarged 12 times from Urformen der Kunst (1928) by Karl Blossfeldt.

The Sausset departmental park in Aulnay-sous-bois, France

Ball of coffee floats aboard Challenger on 25 June 2009.

Novel Coronavirus SARS-CoV-2–This transmission electron microscope image shows SARS-CoV-2, the virus that causes COVID-19. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

显微镜细胞

The Sustina Glacier in the Alaska Range.

STS-135 crew members inspect tools they will use in space during the STS-135 Crew Equipment Interface Test at the Kennedy Space Center on Friday, April 8, 2011, in Florida.

The flag of Texas, depicted on a downtown wall in Pecos, the seat of Reeves County, Texas. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Ends of Thujopsis Dolabrata Branch (Hatchet–Leaved Arbor Vitae) enlarged 10 times from Urformen der Kunst (1928) by Karl Blossfeldt.

Callistemma Brachiatum (Seed of a Scabious) enlarged 30 times from Urformen der Kunst (1928) by Karl Blossfeldt.

植物学肖像

Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Achillea Umbellata (Yarrow) leaf enlarged 30 times from Urformen der Kunst (1928) by Karl Blossfeldt.

植物学贴图

Monument Valley, Arizona. Original image from Carol M. Highsmith’s America, Library of Congress collection.

A lone and lean coyote makes the best of wintertime in the northernmost Wyoming reaches of Yellowstone National Park. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Aconitum (Aconite or Monk's Hood) enlarged 6 times from Urformen der Kunst (1928) by Karl Blossfeldt.

A 3D illustration provides a graphical representation of a single norovirus virion, set against a beige background. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A close left lateral view of a female Oriental rat flea, Xenopsylla cheopis that transmit the bacterium Yersinia pestis, the causative agent of plague. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Penguins standing on a large rock

Sign of Thunder Bay Sister Cities in Ontario

A steam train crosses the 156-foot-tall Bass Point Creek Bridge. Original image from Carol M. Highsmith’s America, Library of Congress collection.

铁路列车建筑

Silphium Laciniatum (Compass Plant) leaves enlarged 6 times from Urformen der Kunst (1928) by Karl Blossfeldt.

植物学文物

A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Ultrastructural morphology shown by coronavirus. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Snake spotted near Launch Pad 39B at NASA's Kennedy Space Center.

Bottom up view of tall trees at Redwood National and State Parks, United States, Northern California. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Spraying Water Fountain with trees and lawn in Beaverton, Oregon

Capital building in Havana, Cuba

建筑物建筑

A saguaro cactus dominates the scene at dusk in the garden of the White Stallion Ranch, a dude ranch outside Tucson, Arizona. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Battleship Texas Houston. Original image from Carol M. Highsmith’s America, Library of Congress collection.

The boosters of the Soyuz rocket are seen as the Soyuz TMA-14 spacecraft and boosters are assembled Monday, March 23, 2009 at the Baikonur Cosmodrome in Kazakhstan.

天文学产业

A supply ship. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Novel Coronavirus SARS-CoV-2–Colorized scanning electron micrograph of an apoptotic cell (blue) infected with SARS-COV-2 virus particles (red), isolated from a patient sample. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

The flags of the countries representing the crew members of Expedition 28 are seen here at the Russian Mission Control Center in Korolev, Russia on June 10, 2011.

Nighttime, ground level view of Pad A, Launch Complex 39, Kennedy Space Center, showing the Apollo 13.

Phacelia Tanacetifolia (Lacy Phacelia) enlarged 12 times from Urformen der Kunst (1928) by Karl Blossfeldt.

North Pearl Street from Maiden Lane North in 1805 in Albany, New York

纽约州珍珠

Novel Coronavirus SARS-CoV-2–
This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as 2019-nCoV, the virus that causes COVID-19. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

One of of American artist James Turrell’s more than 82 “Skyspace” installments around the world. This one stands on the Rice University campus in Houston. Original image from Carol M. Highsmith’s America, Library of Congress collection.

南美洲建筑

Controlled Impact Demonstration instrumented test dummies installed in plane.

Ultra structural details exhibited by a parasite. A healthcare provider donning a pair of green latex gloves in order to protect herself during her subsequent interaction her next patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Final Launch of the Space Shuttle Endeavour, STS-134 Mission, 16 May 2011.

Fundoscopic view of the right eye, it's optic nerve and blood vessels supplying the retina. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Nude Dancer with Aulos (ca. 1911–1916) by Arnold Genthe.

Aristolochia clematitis (Birthwort) enlarged 5 times from Urformen der Kunst (1928) by Karl Blossfeldt.

优质的贴图

DC-8 NASA 717 in flight over San Francisco, Ca., 1991-05-29.

航空器载具

Transmission electron microscopic (TEM) image highlights the particle envelope of a single, spherical shaped, Middle East respiratory syndrome coronavirus (MERS-CoV) virion. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Cornus Florida (Box–Wood of North America, Flowering Dogwood) enlarged 3 times from Urformen der Kunst (1928) by Karl Blossfeldt.

A beautiful sunset in rural Goshen County, Wyoming, near Guernsey. Original image from Carol M. Highsmith’s America, Library of Congress collection.

A red fox prowls for voles, hidden beneath the snow, in Yellowstone National Park in the western U.S. state of Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection.

American bison, or buffaloes, in Yellowstone National Park in the northwest corner of Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Transmission electron microscopic (TEM) image, revealed ultrastructural details exhibited by numerous, Coxiella burnetii bacteria, which cause the worldwide disease known, as Q fever. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A literal pit of vipers at the "World's Largest Rattlesnake Roundup" in Sweetwater, Texas. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Guinea-Bissau, a small country in West Africa.

外层空间藍色

Aerial photograph of the Las Vegas Strip. Original image from Carol M. Highsmith’s America, Library of Congress collection.

建筑物建筑

Reflections of mountains and clouds on Lake Clark

An upper-level weather balloon sails into the sky after release from the Cape Canaveral weather station in Florida.

热气球背景

This image of Ceres is part of a sequence taken by NASA's Dawn spacecraft.

外层空间行星

$Sample of test tubes. A healthcare provider donning a pair of green latex gloves in order to protect herself during her subsequent interaction her next patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.$

医疗药物实验室

Brunella Grandiflora enlarged 8 times from Urformen der Kunst (1928) by Karl Blossfeldt.

优质的花卉

Arched architectural detail in the Federal Triangle in Washington, D.C. Original image from Carol M. Highsmith’s America, Library of Congress collection.

图书馆建筑

Edwin Aldrin walking on the lunar surface. Neil Armstrong, who took the photograph, can be seen reflected in Aldrin’s helmet visor.

外层空间宇航员

Atlantis nears touchdown for the final time on Runway 15 at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, 21 July 2011.

航空器载具

The Whirlpool Galaxy, also known as Messier 51a is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus.

外层空间星系

Cosmic explorer through the universe.

A photomicrograph of Candida albicans fungal spores. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Industrial scene on Nueces Bay in Corpus Christi, Texas. Original image from Carol M. Highsmith’s America, Library of Congress collection.

城市景观城市

Restoration work at the Reading Terminal and Market in the mid-1990s. Original image from Carol M. Highsmith’s America, Library of Congress collection.

铁路列车建筑

The blacklegged ticks, Ixodes pacificus known for the zoonotic spirochetal bacteria, Borrelia burgdorferi. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A girl entering the line for lunch. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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As well as donating 10% of our revenue to Hope for Children we have created this special collection FREE for everyone to enjoy.

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孩子们餐饮

Group A Streptococcus (GAS), Streptococcus pyogenes bacteria, which were atop the surface of a human white blood cell (WBC), known as a neutrophil. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

The J.J. Pickle Federal Building in downtown Austin, Texas. Original image from Carol M. Highsmith’s America, Library of Congress collection.

建筑物建筑

NASA astronauts in space -

天文学载具

Ireland on the first day this summer.

凯尔特人爱尔兰

A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Saguaro Cactus near Tucson in Arizona, USA. Original image from Carol M. Highsmith’s America, Library of Congress collection.

The north polar residual ice cap of the Planum Boreum region.

天文学橙色

Saturn's northern hemisphere in 2016, as that part of the planet nears its northern hemisphere summer solstice in May 2017.

天文学大学

Dunes and Fence, Cape Hatteras, North Carolina. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Artist concept of the Mercury capsule with its launch escape system.

外层空间宇宙飞船

Aconitum Anthora (Yellow Monkshood Leaf) enlarged 3 times from Urformen der Kunst (1928) by Karl Blossfeldt.

Building exterior, St. Louis, Missouri. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Nude photography of naked woman, Reclining Female Nude Posed as Danae (1850s).

Lions in the grass at the Wild Animal Sanctuary near Keenesburg, Colorado. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by rawpixel

Sunrise taken by the STS-133 crew on March 7, 2011.

外层空间日出

Chrysler Building tower in Manhattan. Original image from Carol M. Highsmith’s America, Library of Congress collection.

A red fox prowls for voles, hidden beneath the snow, in Yellowstone National Park in the western U.S. state of Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Niagara Falls, New York. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Scolopendrium Vulgare (Hart's–Tongue Fern) Young Rolled-Up Fronds enlarged 6 times from Urformen der Kunst (1928) by Karl Blossfeldt.

优质的植物

Warming Seas and Melting Ice Sheets.

The terrain for the scientific work conducted by ICESCAPE scientists on July 4, 2010.

For displaying jellyfish, The Monterey Bay Aquarium uses a Kreisel tank, which creates a circular flow to support and suspend the jellies. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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