Skip to content

Science

September 25, 2024

To make fluid flow in one direction down a pipe, it helps to be a shark

Researchers from the University of Washington have discovered a new way to help liquid flow in only one direction, but without using the flaps that engines and our circulatory system rely upon to prevent fluid backup. The team built a flexible pipe with an interior helical structure inspired by the anatomy of shark intestines — creating a prototype inspired by biology but with applications in engineering and medicine.

September 18, 2024

Explaining dramatic planetwide changes after world’s last ‘Snowball Earth’ event

person looking at layered rock

Some of the most dramatic climatic events in our planet’s history are “Snowball Earth” events that happened hundreds of millions of years ago, when almost the entire planet was encased in ice up to 0.6 miles thick. New research from the University of Washington provides a more complete picture for how the last Snowball Earth event ended, and suggests why it preceded a dramatic expansion of life on Earth, including the emergence of the first animals.

September 12, 2024

UW’s Ashleigh Theberge receives Schmidt Sciences Polymath honors for ‘boundary-pushing work’ in cell signaling, communication

Ashleigh Theberge, associate professor of chemistry at the University of Washington, has been named to the Schmidt Sciences Polymath Program, entitling her to grants of up to $2.5 million over five years to “pursue risky, novel theories that would otherwise be difficult to fund,” according to a Sept. 10 announcement from Schmidt Sciences. Theberge — one of six awardees this year — was selected from an applicant pool of 117, and is the first UW faculty member selected for the program, which is in its third year.

September 10, 2024

UW researchers develop a stretchable, wearable device that lights up an LED using only the warmth of your skin

A person in an office with a black sleeve on their arm. On the sleeve is a gray device and an LED, which is glowing red

UW researchers have developed a flexible, durable electronic prototype that can harvest energy from body heat and turn it into electricity that can be used to power small electronics, such as batteries, sensors or LEDs. This device is also resilient — it still functions even after being pierced several times and then stretched 2,000 times.

Thanks to humans, Salish Sea waters are too noisy for resident orcas to hunt successfully

New research led by the University of Washington and the National Oceanic and Atmospheric Administration has revealed how underwater noise produced by humans may help explain why southern resident orca populations have not recovered from historic lows. In a paper published Sept. 10 in Global Change Biology, the team reports that underwater noise pollution — from both large and small vessels — forces northern and southern resident orcas to expend more time and energy hunting for fish. The din also lowers the overall success of their hunting efforts. Noise from ships likely has an outsized impact on southern resident orca pods, which spend more time in parts of the Salish Sea with high ship traffic.

August 30, 2024

New discoveries about how mosquitoes mate may help the fight against malaria

An international team led by researchers at the University of Washington has uncovered surprising details about mosquito mating, which could lead to improved malaria control techniques and even help develop precision drone flight. In a paper published Aug. 30 in the journal Current Biology, the team revealed that when a male Anopheles coluzzii mosquito hears the sound of female-specific wingbeats, his eyes “activate” and he visually scans the immediate vicinity for a potential mate.

August 29, 2024

Scientists will study nearby galaxies to uncover galactic formation history and dark matter

NASA’s upcoming Nancy Grace Roman Space Telescope will look for “fossils” of galaxy formation by conducting high-resolution imaging studies. Through a grant from NASA, astronomers are designing a set of possible observations called RINGS — the Roman Infrared Nearby Galaxies Survey — that would collect these images, and the team is producing publicly available tools that the astronomy community can use once Roman launches and starts collecting data.

August 21, 2024

Human-wildlife overlap expected to increase across more than half of Earth’s land by 2070

The overlap between humans and animals will increase substantially across much of the planet in less than 50 years due to human population growth and climate change, according to a collaborative study by scientists at the University of Michigan, the University of Washington and University College London. By 2070, the overlap between humans and more than 22,000 vertebrate species will rise across nearly 57% of Earth’s land, according to the team.

August 16, 2024

Why isn’t Colorado’s snowpack ending up in the Colorado River? New research suggests the problem might be the lack of spring rainfall

an aerial shot of a landscape with a river going through the lefthand side of the photo

The Colorado River and its tributaries provide water for hydropower, irrigation and drinking water in seven U.S. states and Mexico. But since 2000, water managers have struggled to predict how much water will come from the snowpack. The problem lies with the lack of rainfall in the spring, according to new research from the UW.

August 14, 2024

Galaxies in dense environments tend to be larger, settling one cosmic question and raising others

A new study has found galaxies with more neighbors tend to be larger than their counterparts that have a similar shape and mass, but reside in less dense environments. In a paper published Aug. 14 in the Astrophysical Journal, the team, which used a machine-learning algorithm to analyze millions of galaxies, reports that galaxies found in denser regions of the universe are as much as 25% larger than isolated galaxies. The findings resolve a long-standing debate among astrophysicists over the relationship between a galaxy’s size and its environment, but also raise new questions about how galaxies form and evolve over billions of years.

August 13, 2024

Q&A: Using marijuana can worsen outcomes for young adults with psychosis – how can mental health professionals help them stop?

A cropped shot of a person holding a marijuana plant.

Young adults with psychosis tend to use cannabis at extremely high rates, and their symptoms can be exacerbated by long-term marijuana use. A team of University of Washington researchers is focused on this particular group. 

August 1, 2024

15 UW professors among new class of members to the Washington State Academy of Sciences

Fifteen faculty members at the University of Washington have been elected to the Washington State Academy of Sciences for 2024. They are among 36 scientists and educators from across the state announced Aug. 1 as new members. Selection recognizes the new members’ “outstanding record of scientific and technical achievement, and their willingness to work on behalf of the academy to bring the best available science to bear on issues within the state of Washington.”

June 13, 2024

Q&A: Finding varieties of corn that are adapted to future climates

rows of corn with plants in foreground

Research led by the University of Washington used computer models to pinpoint varieties of corn that will be best adapted to produce high yields in future U.S. climates. The study combined weather and climate projections across the U.S. for 2050 and 2100 with a plant model that simulates corn’s growth to find the mix of traits that will produce the highest, most reliable yield under future conditions across the country.

June 3, 2024

Video: Before they bite — UW researcher homes in on which scents, colors make us a tempting target for hungry mosquitoes

A mosquito with a body full of blood sits on a human finger.

Jeffrey Riffell, a University of Washington professor of biology, wants to understand how female mosquitoes find find a host to bite for a bloody meal. His research has shown that hungry mosquitoes find us by following a trail of scent cues, including chemicals exuded by our skin and sweat, as well as the carbon dioxide gas we exhale with each breath. Mosquitoes also like colors, at least certain ones. His team is closing in on how the sense of smell and vision work together to help a mosquito zero in for the final strike and get her blood meal.

May 28, 2024

In the Field: UW researcher headed to Alaska to study factors that lead to permafrost thaw and to educate foster care youth

In the foreground is a section of a tree with pinecones on it. The tree and pinecones are covered in frost. Behind the tree is a forest. There's a boardwalk going straight through the middle of the picture. The sun is shining in the background.

UW doctoral student Joel Eklof has been investigating which environmental factors contribute to permafrost thaw and the release of methane into the atmosphere. For years, Eklof has traveled to a field site southwest of Fairbanks, Alaska.

May 17, 2024

UW atmospheric scientist participating in field campaign to improve Western snowfall, drought forecasts

Wooden building with snow and blue skies

A UW atmospheric scientist will participate in a campaign to study winter storms and snowfall in northwestern Colorado’s Rocky Mountains. Like Seattle, this area depends on winter snow for its summer water supplies, so improving mountain snow forecasts will improve projections for summer drought and wildfire risks.

May 15, 2024

Scientists want to know how the smells of nature benefit our health

A tree canopy in a tropical rainforest.

Spending time in nature is good for us. And knowing more about nature’s effects on our bodies could not only help our well-being, but could also improve how we care for land, preserve ecosystems and design cities, homes and parks. Many studies have focused on how seeing nature affects us. A team of scientists from around the world wants to understand what the nose knows. They are calling for more research into how odors and scents from natural settings impact our health and well-being.

May 14, 2024

UW-led project to study ozone, atmospheric layers a finalist for next-generation NASA satellite

horizon with horizontal layers of black, red, black and blue

A project led by the University of Washington to better understand our atmosphere’s complexity is a finalist for NASA’s next generation of Earth-observing satellites. STRIVE will receive $5 million to conduct a one-year concept study, and then will hear whether it is selected for launch.

May 9, 2024

Navy Growler jet noise over Whidbey Island could impact 74,000 people’s health

Two men facing away from the camera watch a blurred jet land on an airstrip. The men are both wearing over-ear headphones.

As often as four days a week, Boeing EA-18G Growler electronic attack aircraft based at Naval Air Station Whidbey Island fly loops overhead as pilots practice touch-and-go landings. The noise is immense. New research from the University of Washington shows that the noise isn’t just disruptive — it presents a substantial risk to public health.

April 17, 2024

Ice age climate analysis reduces worst-case warming expected from rising CO2

four woolly mammoths on frozen ground

A detailed reconstruction of climate during the most recent ice age, when a large swath of North America was covered in ice, provides information on the relationship between CO2 and global temperature. Results show that while most future warming estimates remain unchanged, the absolute worst-case scenario is unlikely.

April 4, 2024

Q&A: Eclipses aren’t just good for jaw-dropping views — they’re also opportunities for stellar science, says UW astronomer

white circle on black background

Eclipses past and present aren’t just opportunities for incredible sights. Generations of researchers have used them to study phenomena ranging from the sun itself to the fabric of the universe. UW News intervewed Emily Levesque, author and associate professor of astronomy, about what scientists past and present have learned by studying eclipses.

March 22, 2024

Signs of life detectable in single ice grain emitted from extraterrestrial moons

illustration of gray planet spewing white mist on black background

Could life be found in frozen sea spray emitted from moons orbiting Saturn or Jupiter? New research finds that life can be detected in a single ice grain containing one bacterial cell or portions of a cell. The results suggest that if life similar to that on Earth exists on these planetary bodies, this life should be detectable by instruments launching in the fall.

March 19, 2024

Citizen scientist group finds 15 rare ‘active asteroids’

In 2021, Colin Orion Chandler started Active Asteroids Citizen Science, a partnership between NASA, Zooniverse, astronomers and thousands of citizen scientist volunteers. The initiative is searching for so-called “active asteroids,” which have comet-like tails and could hold clues to the formation of our solar system, among other cosmic mysteries. Chandler, now a University of Washington researcher, and his team recently announced they have discovered 15 active asteroids, and are continuing the search for more of these unusual and rare objects.

March 12, 2024

AI analysis of historical satellite images show USSR collapse in 1990s increased methane emissions, despite lower oil and gas production

buildings with mountains in background

An AI-powered analysis of 25 years of satellite images yields the surprising finding that methane emissions in Turkmenistan, a former Soviet republic and major oil-producing region, actually increased in the years following the dissolution of the Soviet Union.

March 6, 2024

Scientists CT-scanned thousands of natural history specimens, which you can access for free

Natural history museums have entered a new stage of discovery and accessibility — one where scientists around the globe and curious folks at home can access valuable museum specimens to study, learn or just be amazed. This new era follows the completion of openVertebrate, or oVert, a five-year collaborative project among 18 institutions to create 3D reconstructions of vertebrate specimens and make them freely available online. The team behind this endeavor, which includes scientists at the University of Washington and its Burke Museum of Natural History & Culture, published a summary of the project March 6 in the journal BioScience, offering a glimpse of how the data can be used to ask new questions and spur the development of innovative technology.

February 28, 2024

80 mph speed record for glacier fracture helps reveal the physics of ice sheet collapse

drawing of glacier partly above and partly below water

New research documents the fastest-known large-scale breakage along an Antarctic ice shelf. In 2012, a 6.5-mile crack formed in about 5 and a half minutes, showing that ice shelves can effectively shatter, though the speed of breakage is reduced by seawater rushing in. These results can help improve ice-sheet models and projections for future sea level rise.

February 8, 2024

Foul fumes pose pollinator problems

Scientists at the University of Washington have discovered that nighttime air pollution — coming primarily from car exhaust and power plant emissions — is responsible for a major drop in nighttime pollinator activity. Nitrate radicals (NO3) in the air degrade the scent chemicals released by a common wildflower, drastically reducing the scent-based cues that its chief pollinators rely on to locate the flower. The findings, published Feb. 9 in Science, are the first to show how nighttime pollution creates a chain of chemical reactions that degrades scent cues, leaving flowers undetectable by smell. The researchers also determined that pollution likely has worldwide impacts on pollination.

January 30, 2024

Using computers to design proteins allows researchers to make tunable hydrogels that can form both inside and outside of cells

New research led by the UW demonstrates a new class of hydrogels that can form not just outside cells, but also inside of them. These hydrogels exhibited similar mechanical properties both inside and outside of cells, providing researchers with a new tool to group proteins together inside of cells.