The best science images of 2023 – Nature’s picks

Cosmic dust, microscopic syrup, a flying gecko and more.

NIRCam Image of Rho Ophiuchi from the James Webb Space Telescope showing the birth of a star

Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI) Image Processing: Alyssa Pagan (STScI)

Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI) Image Processing: Alyssa Pagan (STScI)

Images selected by Nature’s visuals team, text by Emma Stoye, Nisha Gaind, Katharine Sanderson and Carissa Wong

NASA’s James Webb Space Telescope continued to dazzle in 2023, with some of the most spectacular images of space ever seen. Closer to home, photographers and researchers captured unknown species and hidden microscopic scenes. From cosmic dust to flying geckos, here are the images that caught the eyes of Nature’s editors.

People cross the Brooklyn Bridge amid a dense haze from Canada's wildfire smoke in New York, June 7, 2023

Credit: Dave Sanders/New York Times/Redux/eyevine

Credit: Dave Sanders/New York Times/Redux/eyevine

Orange apocalypse. In June, the northeastern United States was choked by smoke blown down from Canada’s extreme wildfires, which turned the sky a disturbing orange, seen here at New York City’s Brooklyn Bridge. Scientists say that climate change is driving increasingly hot, dry and windy weather.

wide-angle shot of a huge flat topped icecap with meltwater forming rivulets and waterfalls cascading into the sea

Credit: Thomas Vijayan

Credit: Thomas Vijayan

Melt warning. This shot of melt water pouring through the Austfonna ice cap on the Arctic island of Nordaustlandet, Norway, won the Nature category in the 2023 Drone Photo Awards. “I have visited this place several times before, but last year it was disheartening to witness the sea ice melting as early as June,” said photographer Thomas Vijayan.

An electron microscope image of a musculature fossil.

Credit: Xinhua/Shutterstock

Credit: Xinhua/Shutterstock

Ancient flex. This microfossil — about 2 millimetres across — shows a rare example of preserved muscle structures in early animals. The specimen is about 535 million years old and belongs to the cycloneuralia, the group of animals that includes roundworms. They were found in China’s Shaanxi province. The muscles would have assisted movement and feeding, say palaeontologists.

Sun serpent. This huge, snake-like solar filament was captured by astrophotographer Eduardo Schaberger Poupeau, and won the Our Sun category of the 2023 Astronomy Photographer of the Year competition. Filaments are made of plasma that sticks out from the Sun’s surface, shaped by magnetic fields.

A photograph of the Sun with a huge filament in the shape of a question mark.

Credit: Eduardo Schaberger Poupeau

Credit: Eduardo Schaberger Poupeau

Seed spreader. Drosophila fruit flies have some of nature’s longest sperm at 2 millimetres. This image of fly sperm growing in the testis was a winner in the 2023 MIT Koch Institute Image Awards. Each mature sperm (blue) starts as a stem cell (top) then elongates. Cell nuclei are white. Magenta and yellow show expression of RNA essential for sperm  development.

A microscopic image showing the coiled spiral of fruit fry testes and visible inside are cyan coloured sperm

Credit: Jaclyn Fingerhut, Yukiko Yamashita - MIT Department of Biology, Whitehead Institute

Credit: Jaclyn Fingerhut, Yukiko Yamashita - MIT Department of Biology, Whitehead Institute

Space Monet. This awe-inspiring image by the James Webb Space Telescope shows stars forming in the Rho Ophiuchi cloud complex, the closest place to Earth where stars are being born. Its ethereal texture evokes that of impressionist paintings. Jets of hydrogen gas (red) spurt from young stars, illuminating the interstellar gas. The glowing ‘cave’ below is formed by stellar winds blowing out of a young star.

NIRCam Image of Rho Ophiuchi from the James Webb Space Telescope showing the birth of a star

Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI) Image Processing: Alyssa Pagan (STScI)

Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (STScI) Image Processing: Alyssa Pagan (STScI)

A grey mottled Gekko mizoramensis sp. n. laying prostrate on a wooden log with its mouth open

Credit: Lal Muansanga

Credit: Lal Muansanga

Hello, gecko! This year, scientists discovered a new species of flying gecko, Gekko mizoramensis. The lizards live in Mizoram state in northeast India. They use the wing-like flaps of skin on their legs and feet to glide through the forest, from tree to tree. The find shows how little is known about plant life and animals in the area — there could be many more species unknown to science lurking there.

A video still of the lava lake Halemaʻumaʻu as seen from the west rim of the Kilauea

Credit: USGS/Handout via REUTERS

Credit: USGS/Handout via REUTERS

Lava monster. Hawaii’s most active volcano, Kīlauea, erupted in June, creating a pool of lava in the Halema’uma’u crater. The volcano is studded with cameras and instruments that measure ground deformation and seismic activity.

Yeast snowflake. This starry cluster of yeast cells is the result of experiments that probed the evolution of multicellular organisms. Researchers selected large cells that evolved to form branching clumps.

A snowflake-y clump of yeast cells.

Credit: Anthony J. Burnetti

Credit: Anthony J. Burnetti

multiple cyclone vortices visible on the surface of Jupiter

Credit: NASA/JPL-Caltech/SwRI/MSSS/Brian Swift

Credit: NASA/JPL-Caltech/SwRI/MSSS/Brian Swift

Swirling cyclones. During its 54th orbit of Jupiter, NASA’s Juno spacecraft captured close-up views of the storms that surround the planet’s north pole. Citizen scientist Brian Swift processed one image to produce this high-contrast version, which highlights the cyclones.

A Paper Nautilus drifts on a piece of ocean debris at night, surrounded by heavy sediment in The Philippines.

Credit: Jialing Cai/Ocean Photographer of the Year

Credit: Jialing Cai/Ocean Photographer of the Year

Stick drift. This enchanting paper nautilus octopus (Argonauta sp.) is hitching a ride on a stick in the dark of the Pacific Ocean off the Philippines. It is surrounded by sediment from a volcanic eruption that twinkles in the camera’s light.

microscopy image of coloured crystallized sugar syrup layers like sheets of paper

Credit: Dr. Diego García/Courtesy of Nikon Small World

Credit: Dr. Diego García/Courtesy of Nikon Small World

Syrup’s sharp edges. Sugar syrup isn’t always oozy. Crystallized, seen under a polarized-light microscope and magnified 25 times, the substance’s spiky, layered structure is revealed. This counter-intuitive image was showcased in the 2023 Nikon Small World Photomicrography Competition.

Relativity's Terran 1 rocket launch

Credit: Relativity/John Kraus

Credit: Relativity/John Kraus

Print-a-rocket. The first launch of a rocket made from 3D-printed parts lit up the night sky above Florida in March. Terran 1 was built by aerospace company Relativity Space in Long Beach, California.

A PERSONAL VIEW OF THE NEWS

In compiling this year’s collection of striking science images, Nature’s media editors each identified a photograph that said something special to them. Here is their take on the past 12 months.

Ship Zeila stranded along the Skeleton Coast, Namibia.

Credit: Vikas Chander

Aerial view of a red roofed house that is untouched by fire damage, surrounded by destroyed homes and buildings

Credit: Patrick T. Fallon/AFP via Getty

Two elephants are eating from a garbage dump in Sri Lanka.

Credit: Ishara S. Kodikara/AFP via Getty

Volunteers give water to a sheep saved from a burning farm, as a wildfire rages in the village of Hasia, near Athens, Greece August 22, 2023.

Credit: Alkis Konstantinidis/Reuters

A coral reef is perfectly mirrored on the surface of the water at low tide

Credit: Gabriel Barathieu/Ocean Photographer of the Year

Ship Zeila stranded along the Skeleton Coast, Namibia.

Credit: Vikas Chander

Aerial view of a red roofed house that is untouched by fire damage, surrounded by destroyed homes and buildings

Credit: Patrick T. Fallon/AFP via Getty

Two elephants are eating from a garbage dump in Sri Lanka.

Credit: Ishara S. Kodikara/AFP via Getty

Volunteers give water to a sheep saved from a burning farm, as a wildfire rages in the village of Hasia, near Athens, Greece August 22, 2023.

Credit: Alkis Konstantinidis/Reuters

A coral reef is perfectly mirrored on the surface of the water at low tide

Credit: Gabriel Barathieu/Ocean Photographer of the Year

Uncharted waters. Agnese Abrusci (Media editor). This shot of a shipwreck stranded on Namibia’s treacherous Skeleton Coast is among the winners of the 2023 Astronomy Photographer of the Year competition. The vessel seems to ride the fog, lit by star trails shining through the cloudy sky. The photo conveys some of the unsettling feelings we have all experienced over the past year. Amid earthquakes, floods, war, widening inequalities and an escalating climate emergency, it is tempting to hide in a comforting emotional ‘fog’ away from the world. Whether we will rise from the haze, or sink into it, remains to be seen.

Sole survivor. Michael Szebor (Locum media editor). A lone house remains standing in Lahaina, Hawaii, surrounded by the charred remains of the rest of its neighbourhood. With its volcanic landscapes, Hawaii is no stranger to natural disasters, but wildfires on the island of Maui earlier this year took many people by surprise. This picture brings home the scale of the devastation in hard-hit urban areas. It is thought that recent renovations helped this house to survive, while others around it were burnt to the ground.

Junk food. Amelia Hennighausen (US media editor). As Earth’s natural resources dwindle, wild species must find new ways to survive. These elephants in Ampara, Sri Lanka, are forced to forage in rubbish dumps because so much of their habitat has been lost. They and other animals can become ill or die if they ingest too much plastic. The country has banned some single use plastics, but without enough natural habitat, human–elephant conflicts near wildlife reserves will continue.

Wildfire aftermath. Tom Houghton (Locum managing media editor). Photographer Alkis Konstantinidis captured this moment of compassion as wildfires swept through the Greek village of Hasia in August. Amid the haze and smoke of the raging blaze, two volunteers hand feed water to a sheep rescued from a burning farm. I was drawn to the painterly framing of this powerful shot.

Coral reflections. Jessica Hallett (Associate media editor). This stunning image of corals mirrored at low tide came third in the Conservation (Hope) category of this year’s Ocean Photographer of the Year competition. After researching many coral-bleaching images for stories this year, it was a breath of fresh air for me to see such a beautifully pristine reef photographed in such spectacular fashion. As a keen snorkeller and diver, I can appreciate the difficulty in keeping the water as still as possible to get the perfect reflection.

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