The best microscope photos of the year reveal a strange and hidden universe in astonishing detail

09 tulip bud cross section andrei savitsky microscope photo nikon small world 2019 nsw2019

Andrei Savitsky/Nikon Small World

A cross section of a tulip bud.

Human eyes may be remarkable tools to view the universe, but they also restrict our perception of reality to a limited, macroscopic slice.

Fortunately, microscopes grant us access to a fantastic, beautiful, and sometimes shocking universe that hides beyond the limits of vision.Advertisement

To honor the mastery required to capture the microscopic world and appreciate its wonders, the Nikon Small World contest picks the best photographs taken through a microscope, and has done so each year for decades.

"Our goal has always been to show the world how art and science intersect," Eric Flem, Nikon Instruments' communications manager, said in a press release. "As new imaging and microscopy techniques develop over the years, our winners showcase these technology advances more and more creatively."

For the 45th year of the contest, four judges reviewed more than 2,000 pictures submitted from nearly 100 different countries. A little more than 100 photos stood out from the pack.
Advertisement

We've posted the top 20 winners below - including images of a fluorescent turtle embryo, a close-up of a housefly's compound eye, and a psychedelic cross-section of a tulip flower bud (above) - along with 20 of our other favorites from the contest.

{{}}

A fluorescent photo of a turtle embryo took first place. The photographers stacked and stitched together hundreds of images to fully capture every detail.

A fluorescent photo of a turtle embryo took first place. The photographers stacked and stitched together hundreds of images to fully capture every detail.

A trippy image of three stentors, a type of single-celled protozoa that lives in freshwater and feeds on algae, snagged second place.

A trippy image of three stentors, a type of single-celled protozoa that lives in freshwater and feeds on algae, snagged second place.
Advertisement

A photo showing a fluorescent alligator embryo came in third. The picture was taken just 20 days into the creature's development, as nerves and a skeleton formed.

A photo showing a fluorescent alligator embryo came in third. The picture was taken just 20 days into the creature's development, as nerves and a skeleton formed.

Here are the rest of the top 20 selections, followed by 20 of our personal favorites:

4. The bushy antennae of a male mosquito.

4. The bushy antennae of a male mosquito.
Advertisement

5. A crystal-clear snowflake.

5. A crystal-clear snowflake.

6. The soul-piercing eyes of a small spider covered in white hair.

6. The soul-piercing eyes of a small spider covered in white hair.
Advertisement

7. The pollen-releasing stamen of a Chinese red carnation.

7. The pollen-releasing stamen of a Chinese red carnation.

8. A frozen water droplet magnified eight times.

8. A frozen water droplet magnified eight times.
Advertisement

9. A tulip bud, sliced open to show the petals and stamen curled inside.

9. A tulip bud, sliced open to show the petals and stamen curled inside.

10. Cells from the pulmonary artery of a young cow undergo the telophase stage of mitosis, in which they form two nuclei before dividing into two new cells.

10. Cells from the pulmonary artery of a young cow undergo the telophase stage of mitosis, in which they form two nuclei before dividing into two new cells.
Advertisement

11. The ovaries of a fruit fly. The protein filament F-actin is stained yellow, nuclei are green, and follicle cells are magenta.

11. The ovaries of a fruit fly. The protein filament F-actin is stained yellow, nuclei are green, and follicle cells are magenta.

12. A squirming mosquito larva.

12. A squirming mosquito larva.
Advertisement

13. Cuprite, a mineral composed of copper oxide.

13. Cuprite, a mineral composed of copper oxide.

14. A female lynx spider.

14. A female lynx spider.
Advertisement

15. A pregnant freshwater crustacean called Daphnia magna.

15. A pregnant freshwater crustacean called Daphnia magna.

16. A housefly's eye, magnified 50 times.

16. A housefly's eye, magnified 50 times.
Advertisement

17. A crystal of ascorbic acid, also known as vitamin C, reveals fascinating structures under a microscope.

17. A crystal of ascorbic acid, also known as vitamin C, reveals fascinating structures under a microscope.

18. A crystal of cristobalite suspended in quartz.

18. A crystal of cristobalite suspended in quartz.
Advertisement

19. A California two-spot octopus embryo.

19. A California two-spot octopus embryo.

20. Blood vessels in a mouse heart after it suffered a heart attack.

20. Blood vessels in a mouse heart after it suffered a heart attack.
Advertisement

In addition to those winners, 15 photos got honorable mentions. Here are the best ones, starting with this image of a moth wing.

In addition to those winners, 15 photos got honorable mentions. Here are the best ones, starting with this image of a moth wing.

Mold grows on a plum seed.

Mold grows on a plum seed.
Advertisement

A blend of vitamin C crystals and sugar.

A blend of vitamin C crystals and sugar.

A fossilized ammonite: a sea creature that went extinct around 66 million years ago.

A fossilized ammonite: a sea creature that went extinct around 66 million years ago.
Advertisement

Amino acids, the building blocks of proteins and life, crystallized under a microscope.

Amino acids, the building blocks of proteins and life, crystallized under a microscope.

Dozens more fantastic photos received recognition from the judges as "images of distinction." This one show eggs inside a brine shrimp.

Dozens more fantastic photos received recognition from the judges as "images of distinction." This one show eggs inside a brine shrimp.
Advertisement

A cereal rye leaf curls around its stem.

A cereal rye leaf curls around its stem.

A tiny daphnia, a crustacean also known as a water flea.

A tiny daphnia, a crustacean also known as a water flea.
Advertisement

Karlsbad Sprudelstein, a type of sedimentary rock.

Karlsbad Sprudelstein, a type of sedimentary rock.

A single-celled organism called Paramecium caudatum, which had been fed yeast cells stained with red dye.

A single-celled organism called Paramecium caudatum, which had been fed yeast cells stained with red dye.
Advertisement

Molten caffeine.

Molten caffeine.

The deer-like antennae of a Haplomalachius flabellatus insect.

The deer-like antennae of a Haplomalachius flabellatus insect.
Advertisement

A mouse's mammary gland, which was grown in a lab.

A mouse's mammary gland, which was grown in a lab.

The threads of a striated muscle cell in heart tissue, which was developed from a human stem cell.

The threads of a striated muscle cell in heart tissue, which was developed from a human stem cell.
Advertisement

The magnified surface of a seed.

The magnified surface of a seed.

The sporangia structures that produce spores, tucked inside the leaf of a lady fern.

The sporangia structures that produce spores, tucked inside the leaf of a lady fern.
Advertisement

A bearing from a mechanical watch.

A bearing from a mechanical watch.

Myoepithelial cells wrapped around milk-producing sacs in a mouse's mammary gland.

Myoepithelial cells wrapped around milk-producing sacs in a mouse's mammary gland.
Advertisement

A single-celled algae called Triceratium morlandii.

A single-celled algae called Triceratium morlandii.

An ornate crystal of methylsulphonal, an organic sulfur compound.

An ornate crystal of methylsulphonal, an organic sulfur compound.
Advertisement