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.

Aboard the International Space Station, astronauts experience near-weightlessness—and fluid accumulates in their heads as a result, which could potentially be one cause of headaches.

Most Astronauts Experience 'Space Headaches' While on the ISS, Study Finds

Surveys of 24 astronauts who traveled to the International Space Station found that nearly all of them reported headaches, and many of these occurred past the first week in space

SpaceX's third test flight of its Starship rocket was conducted Thursday morning. For the first time, the rocket made it to orbit.

Starship Reaches Orbit in Third Test Flight, a Success for SpaceX and the Future of Lunar Travel

As it returned to Earth, the spacecraft likely broke apart or burned up, and the booster was lost in the Gulf of Mexico

Beluga whales are one of five species of whale that undergo menopause. The new study finds that females in these five species live decades longer than females of similarly sized species.

Whales That Go Through Menopause Live Longer and May Help Care for Grandchildren

Alongside humans, five species of toothed whales are known to experience menopause. A new study suggests they evolved the trait to increase their lifespan

For rabbits and hares, females typically weigh more than males, according to a new study.

For Most Mammal Species, Males Actually Aren't Larger Than Females, Study Finds

New research upends a long-held theory that male mammals tend to be bigger than their female counterparts

A Neanderthal skull on display at the Natural History Museum, London. Many modern humans have inherited around 1 to 2 percent of their DNA from Neanderthals and their close relatives, Denisovans.

Modern Indian People Have a Wide Range of Neanderthal DNA, Study Finds

Genomes of Indian people today reveal links to a prehistoric migration and a group of Iranian farmers, as well as several new sequences from the Neanderthal genome

The Department of Defense's All-domain Anomaly Resolution Office was created in 2022 to investigate reports of unidentified anomalous phenomena.

U.S. Has 'No Evidence' of Alien Technology, New Pentagon Report Finds

A review of government investigations into unidentified anomalous phenomena since 1945 found that "most sightings were ordinary objects and phenomena and the result of misidentification"

Some researchers say that "bringing back" woolly mammoths could help protect frozen tundras by slowing the melting of permafrost.

Scientists Grow Elephant Stem Cells in Key Step Toward Woolly Mammoth 'De-Extinction'

The team's lofty goal of "resurrection" is still far from reality, but scientists say the advancement in understanding cells could help with elephant conservation

A view of the Korolevo archaeological site. Researchers used the decay of isotopes in rocks dug up from the site to determine the age of the stone tools.

Stone Tools Found in Ukraine May Be the Oldest Evidence of Early Humans in Europe

The 1.4-million-year-old rocks may have belonged to Homo erectus, and they shed light on migrations of human ancestors, a new study suggests

Scientists conduct sampling at Crawford Lake in Ontario, Canada, in April 2023. Last summer, a working group chose the lake as a representative location for the influence of human activity on the planet due to the history recorded in its sediment.

Scientists Reject Proposal to Define the Anthropocene, a Geological Age Marked by Human Activity

Experts had suggested a new epoch started in the mid-20th century, but the recent vote demonstrates how tough it is to pinpoint when humans' impact on the planet began

An artist's rendition of the Europa Clipper mission, set to launch to Europa in October. The mission could provide new insights about the life-supporting potential of the moon, which hosts a massive saltwater ocean beneath its icy surface.

Jupiter's Moon Europa May Have Less Oxygen Than Previously Thought

The new findings could have implications for whether Europa's vast ocean contains the conditions necessary to support life

An orca hunting sea lion pups on an Argentinian beach in 2006. Before the recent study, killer whales had only been observed hunting white sharks in groups.

Single Orca Spotted Killing a Great White Shark for the First Time Ever

In less than two minutes, the marine mammal attacked a juvenile white shark and ripped out its liver in an encounter off the coast of South Africa last year

NASA SpaceX's Crew-8 from left to right: Roscosmos cosmonaut Alexander Grebenkin and NASA astronauts Michael Barratt, Matthew Dominick and Jeanette Epps. Set to launch to the ISS on Saturday, the crew will not be impacted by the leak, NASA says.

A Leak on the International Space Station Is Growing, but It Poses No Threat to Crews, NASA Says

The leak, which is at the end of a Russian service module, will not affect the upcoming launch of Crew-8 to the station

An image showing the Odysseus lander on the moon's surface. A piece of a landing leg has broken off on the left of the image. The gear still protected Odysseus as it touched down.

Odysseus Moon Lander Is Powering Down After 'Very Successful' Mission

The history-making spacecraft landed on its side, but it spent nearly a week sending data and images back from the moon—and engineers may try to make contact again after the lunar night is over

A Brazilian flea toad sits on a Brazilian real. The coin is 27 millimeters across.

The World's Smallest Vertebrate Is a Tiny Brazilian Frog, Study Finds

Adult male Brazilian flea toads are just over 7 millimeters long on average, and females measure about 8.15 millimeters

An illustration of the DART spacecraft next to the asteroid, Dimorphos, and the larger asteroid it orbits, Didymos.

Asteroid Hit by NASA Spacecraft Was Reshaped by the Collision, Study Finds

Instead of forming a crater, the agency's intentional DART crash redistributed massive amounts of the asteroid and shot large quantities of rock into space

An adult humpback whale and calf. In the new study, the researchers blew air into the larynxes of three deceased whales, including a humpback, to learn how the the organ makes sound.

Scientists Discover How Some Whales Can Sing While Holding Their Breath Underwater

Baleen whales have evolved unique voice boxes essential for song, a new study finds—but these low-frequency vocalizations must compete with the noise of humans' ships

Flaco, a Eurasian eagle-owl, sits in a tree in Central Park. The bird roosted and hunted in the park during the year following his escape, becoming popular with local birders, before his death on February 23.

Flaco, the Famous Owl That Escaped the Central Park Zoo, Dies After Hitting a Building

The Eurasian eagle-owl had been living free in New York City after someone cut the wires on his zoo cage last year

Odysseus passes over the near side of the moon after entering into lunar orbit on Wednesday. The spacecraft successfully landed on the moon Thursday evening Eastern time.

An American Spacecraft Successfully Lands on the Moon for the First Time Since 1972

After a tense touchdown process with last-minute changes, U.S.-based company Intuitive Machines received a signal from its uncrewed Odysseus lunar lander on Thursday evening

Short attention spans could be helpful for foragers, since switching quickly between food sources when exploring could lead to a higher yield, researchers suggest.

ADHD Traits Might Have Helped Hunter-Gatherers Collect More Food While Foraging, Study Suggests

Participants who self-reported ADHD behaviors were better at an online berry-picking game than those who did not report such traits

An artist's rendering of the quasar that set the record for the universe's brightest object, with its black hole at its center.

Astronomers Discover the Brightest Known Object in the Universe, Shining 500 Trillion Times as Bright as the Sun

The quasar—a glowing, active core of a galaxy—has a black hole at its center that consumes more than a sun’s-worth of mass each day

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