Shi En Kim

Shi En Kim

 

Shi En Kim is a Washington, D.C.-based freelance science journalist. Her work has appeared in National Geographic, Scientific American, the Atlantic, Popular Science and others. In 2021, she interned at Smithsonian magazine as an AAAS Mass Media Fellow.

The invasive northern giant hornet, also called a murder hornet, has been eradicated from the United States.

Officials Declare the U.S. Free of 'Murder Hornets' in a Rare Victory Against an Invasive Insect

Five years after the first sighting in Washington state, intense efforts have eradicated the bee-killing hornets from the nation

New research suggests early humans hunted and ate mammoths, as well as elk and bison, to a lower degree.

An Ice Age Infant's Bones Reveal Early Americans Ate Woolly Mammoths as a Protein Staple

New research examines chemical signatures to determine the diet of a prehistoric boy and his mother, suggesting the Clovis people relied on mammoths for a large portion of their menu

The Stegosaurus named Apex is on display at the American Museum of Natural History in New York City.

You Can Now See Apex, the World's Most Expensive Dinosaur Fossil, on Display at a New York City Museum

The largest and most complete Stegosaurus specimen sold for a record-setting price in July, and it is currently on loan to the American Museum of Natural History for four years

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

A photo of Neptune, taken by the Voyager 2 probe, with the colors rebalanced to represent its truest appearance

The Six Most Amazing Discoveries We’ve Made About Neptune

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space telescopes

The crowning glory of the Gardenia brighamii is its pearly flower.

Can Fungi Save This Endangered Hawaiian Tree?

By inoculating greenhouse na’u seedlings with mycorrhizal fungi, researchers hope to boost survival odds when the plants are returned to the wild

A color-enhanced photo of Pluto that was captured by the New Horizons spacecraft in 2015

The Seven Most Amazing Discoveries We’ve Made About Pluto

Though technically not a planet, it has as rich geology as any of its planetary siblings in the solar system

Annual mammograms are recommended for women in their 40s and above, but new research suggests younger adults are increasingly at risk for breast cancer.

Breast Cancer Cases Are Rising Among Younger Women, Report Finds

Though breast cancer mortality is declining overall, Asian American women and women under 50 have experienced an uptick in diagnoses of the disease

Gears turn inside an antique watch.

World's First Ultra-Precise Nuclear Clock Is Within Reach After Major Breakthrough, Researchers Say

The technology, enabled by thorium atoms, could keep time more accurately than atomic clocks and enable new discoveries about gravity, gravitational waves and dark matter

An illustration of an asteroid and the moon orbiting Earth.

Earth Is Getting a New 'Mini Moon' for the Next Two Months, Astronomers Say

A roughly 33-foot-long asteroid called 2024 PT5 will chart a horseshoe-like path around our planet

An artist’s illustration of the Porphyrion jet pair escaping a black hole and passing through voids in the cosmic web.

Astronomers Discover Record-Breaking Jets Escaping a Black Hole, the Longest Ever Seen

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end

Saturn, the second-largest planet in our solar system, is best known for its layered rings.

The Seven Most Interesting Discoveries We’ve Made by Exploring Saturn

Scientists continue to learn new things about the planet, its sweeping rings and its many moons

Jupiter's moon Ganymede is the largest moon in the solar system and is even wider than the planet Mercury.

An Ancient Asteroid Smashed Into Jupiter's Moon Ganymede and Tipped It Over, Study Finds

The cataclysmic impactor was 20 times the size of the rock that wiped out the dinosaurs on Earth

Gerard Barron, chairman and CEO of The Metals Company, holds a nodule retreived from the seafloor in the Clarion Clipperton Zone of the Pacific Ocean in 2021. The company plans to mine for these nodules, which researchers suggest produce oxygen underwater.

Scientists Discover 'Dark Oxygen' on the Ocean Floor Generated—Surprisingly—by Lumps of Metal

Researchers found that electric currents from polymetallic nodules are behind this alchemy—the same minerals that deep-sea miners are targeting

A cyclist in Uttenweiler, Germany, rides toward the rising sun on July 21, 2024, which briefly held the title of the hottest day on record, until it was broken again one day later.

Earth Reached Its Hottest Day on Record Twice in a Row This Week

The global average surface temperature soared to 17.15 degrees Celsius on Monday, or 62.87 degrees Fahrenheit, breaking a short-lived record set on Sunday

A composite image of Jupiter, taken by the Juno spacecraft

The Seven Most Amazing Discoveries We’ve Made by Exploring Jupiter

The giant planet is a world of extremes

This false-colored image of Mercury reflects the varying age and mineral composition of the surface.

The Seven Most Amazing Discoveries We’ve Made by Exploring Mercury

Only two robotic missions have made it to the Swift Planet, but they were crucial for upending many false assumptions of that sun-scorched world

Europa’s icy surface hides an ocean of liquid water underneath, making it a prime target in the search for extraterrestrial life.

See the Messages NASA Will Send to Space on Its Upcoming Mission to Europa

A metal plate affixed to the Europa Clipper is engraved with a poem, tributes to scientists and waveforms representing the word "water" in 103 languages, among other drawings

NASA’s Mariner 10 spacecraft captured this view of Venus. The world has blistering surface temperatures, crushing atmospheric pressure and clouds of corrosive acid.

The Six Most Amazing Discoveries We’ve Made by Exploring Venus

Our sister planet’s cloudy exterior gave it an aura of mystery—until humanity developed the technology to probe past the veil

An artist’s illustration of Glikmanius careforum swimming beneath Troglocladodus trimblei in ancient waters.

Paleontologists Discover Two New Shark Species From Fossils in Mammoth Cave National Park

The "active predators" prowled the oceans more than 325 million years ago, before the time of Pangea

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