Will Sullivan

Will Sullivan

 

Will Sullivan is a science writer based in Washington, D.C. His work has appeared in Inside Science and NOVA Next.

The asteroid sample that is now on display at the National Museum of Natural History. By studying the retrieved space rocks, scientists aim to better understand how water and organic material first arrived on Earth.

How to See NASA's Bennu Asteroid Sample in Person

A tiny piece of the space rock made its public debut at the Smithsonian National Museum of Natural History, as scientists study the rest of the sample

The pair of asteroids, captured by NASA's Lucy spacecraft on November 1, 2023, from around 270 miles away.

NASA Finds a Surprise Second Asteroid During a Flyby Mission

While testing its tracking system, the agency's Lucy spacecraft discovered that Dinkinesh is not one space rock, but two

The Beatles perform at the Circus Krone Building in Munich on June 24, 1966. The newly released song features contributions from all four band members.

The Beatles Release Their Last Song, ‘Now and Then,’ Featuring A.I.-Extracted Vocals From John Lennon

Based on a demo recorded by Lennon in the 1970s, the song is the "closest we'll ever come to having him back in the room"

An artist's rendition of the collision between Earth and the protoplanet Theia, which, according to the prevailing theory, resulted in the moon's formation.

Mysterious Lumps in Earth's Mantle May Be Remains of the Crash That Formed the Moon

Chunks of a protoplanet called Theia became lodged within Earth after the two worlds smashed together, new computer simulations suggest

A blood smear of a patient with sickle cell. The crescent-shaped sickle cells can be seen in the smear.

Gene-Editing Treatment for Sickle Cell Disease Moves Closer to Approval

FDA advisors said the benefits seem to outweigh any possible risks, and the agency will decide whether to approve it by December 8

The four telescopes of the Very Large Telescope in Chile. Researchers used them to search for the source of the fast radio burst.

Astronomers Find Powerful 'Fast Radio Burst' That Traveled for Eight Billion Years

The strong blast of radio waves is the oldest known, and it could tell scientists more about the mysterious matter that lies between galaxies

An image of Pluto taken by the New Horizons spacecraft in 2015

A Supervolcano on Pluto May Have Spewed Ice Just a Few Million Years Ago

An unusual crater on the dwarf planet hints at past volcanic activity—and a possible vast ocean beneath its surface, scientists say

Female chimps at the Taronga Zoo in Sydney, Australia, in 2005. The new study followed 185 chimps in Uganda's Kibale National Park for 21 years.

Wild Female Chimpanzees Go Through Menopause, Study Finds

Until now, menopause had not been documented in wild, non-human animals, except for a few species of toothed whales

In the new experiment, roosters made fewer alarm calls, meant to warn peers of predators, when placed in front a mirror versus when standing near another rooster.

Roosters May Recognize Their Reflections in Mirrors, Study Suggests

The findings demonstrate self-recognition could be more common among animals than previously thought

Previous analyses of seismic activity on Mars suggested its core was surprisingly large, with a low density. Two new studies suggest the opposite.

Mars' Core May Be Smaller Than Thought, Wrapped in a Sea of Molten Rock

Based on seismic waves from a meteorite impact, two teams of scientists suggest the Red Planet has another layer deep beneath its surface

A chum salmon in Alaska's Katmai National Park and Preserve. Salmon numbers are declining in some places due in part to climate change.

Climate Change Is Pushing Salmon North in Alaska, Scientists Say

Researchers recently found about 100 chum salmon spawning in the Arctic, suggesting the species is shifting to new habitats

Aedes aegypti mosquitoes can spread dengue fever to humans via bites.

'Extremely Rare' Case of Locally Acquired Dengue Fever Detected in California

Officials say the risk of exposure to the virus, which is spread by mosquito bites, is very low for residents

A photograph of the moon by the Apollo 17 crew on their return trip back to Earth. The new study analyzes material gathered from the lunar surface during the 1972 mission.

The Moon Is 40 Million Years Older Than Thought, Lunar Rock Samples Suggest

A new analysis of crystals from the moon pushes its age back to just 110 million years after the solar system formed

NASA's InSight lander peers down at the Martian surface. The mission recorded more than 1,300 quakes during its four years of operation.

Mars' Most Powerful Quake Likely Triggered by Tectonic Forces

Researchers searched for signs of a meteorite impact that caused the quake but were unable to find any

Hops give beer its bitter taste and aroma.

Hoppy Beer Could Be Climate Change's Next Victim

Warming temperatures and drier conditions in Europe could continue to lead to declines in hop yields and hop quality, a new study finds

The Centers for Disease Control and Prevention found that 7.5 percent of all adults in the U.S. had experienced long Covid.

Reduced Serotonin Levels Could Cause Long Covid Symptoms, Study Finds

Researchers identify a mechanism through which inflammation related to the virus leads to lower levels of the neurotransmitter

The cave lion skeleton from Siegsdorf in Germany with a replica of a wooden spear that may have been used to kill it. The authors theorize that Neanderthals may have stabbed the lion while it was resting or after it had been injured.

Neanderthals May Have Hunted Cave Lions

Researchers say well-preserved bones may be the earliest direct evidence of the hunting of large predators

In the new study, long-tailed macaques, or crab-eating macaques, received kidney tranplants from genetically edited pigs. One of the monkeys survived for just over two years after the transplant.

Monkeys With Transplanted Pig Kidneys Survive for Up to Two Years

The study brings scientists one step closer to conducting trials in human patients, researchers say

An artist's rendition of the Pysche asteroid. Data suggests that Psyche is between 30 and 60 percent metal, unlike any object in the solar system scientist's have observed up close before.

NASA Launches Mission to Study Distant Asteroid

The metal-rich object could hold clues about how our planet formed

More than 52 million birds died in the U.S. because of avian flu outbreaks in 2022.

Editing Chicken Genes Could Slow the Spread of Bird Flu, Study Suggests

Using CRISPR technology, researchers edited a protein gene that increased chickens' resistance to the virus. But the process is far from practical use

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