Science
December 19, 2024
By looking at individual atoms in tooth enamel, UW and PNNL researchers are learning what happens to our teeth as we age
A research team at UW and the Pacific Northwest National Laboratory examined the atomic composition of enamel samples from two human teeth.
December 13, 2024
In the Field: UW Oceanographers and undergrads pursue tiny viral prize in Puget Sound waters
UW oceanographer Robert Morris and a collaborator at UCLA are going out with students to collect the most abundant bacteria in the oceans to understand how its relationship with marine viruses changes depending on the place or the season. They leave Dec. 16 aboard UW School of Oceanography’s small research vessel, the RV Rachel Carson.
December 6, 2024
More than 10,000 supernovae counted in stellar census
Since 2018 the Zwicky Transient Facility, an international astronomical collaboration based at the Palomar Observatory in California, has scanned the entire sky every two to three nights. As part of this mission, the ZTF’s Bright Transient Survey has been counting and cataloguing supernovae — flashes of light in the sky that are the telltale signs of stars dying in spectacular explosions. On Dec. 4, ZTF researchers — including astronomers at the University of Washington — announced that that they have identified more than 10,000 of these stellar events, the largest number ever identified by an astronomical survey.
Record-low Antarctic sea ice can be explained and forecast months out by patterns in winds
University of Washington researchers show that the all-time record low in winter sea ice extent in 2023 can be explained by warm Southern Ocean conditions and patterns in the winds that circled Antarctica months earlier, allowing forecasts for sea ice coverage around the South Pole to be generated six or more months in advance. This could support regional and global weather and climate models.
December 5, 2024
That’s no straw: Hummingbirds evolved surprisingly flexible bills to help them drink nectar
Hummingbird bills — their long, thin beaks — look a little like drinking straws. But new research shows just how little water, or nectar, that comparison holds. University of Washington scientists have discovered that the hummingbird bill is surprisingly flexible. While drinking, a hummingbird rapidly opens and shuts different parts of its bill simultaneously, engaging in an intricate and highly coordinated dance with its tongue to draw up nectar at lightning speeds.
December 4, 2024
Video: Talking about climate and weather with the Office of the Washington State Climatologist
From a base at the southwest corner of the UW’s Seattle campus, the Office of the Washington State Climatologist’s Guillaume Mauger and Karin Bumbaco provide expertise, tools and resources on “all things climate” to partners and communities across the state.
November 25, 2024
Video: UW-led research links wildfire smoke exposure with increased dementia risk
An analysis of the health care records of 1.2 million Southern California residents found that higher long-term smoke exposure was associated with a significant increase in the odds that a person would be diagnosed with dementia. Exposure to non-wildfire PM2.5 also increased a person’s risk of dementia, but to a much lesser degree.
November 21, 2024
Fewer than 7% of global hotspots for whale-ship collisions have protection measures in place
A new study led by the University of Washington has for the first time quantified the risk for whale-ship collisions worldwide for four geographically widespread ocean giants that are threatened by shipping: blue, fin, humpback and sperm whales. In a paper published online Nov. 21 in Science, researchers report that global shipping traffic overlaps with about 92% of these whale species’ ranges. Only about 7% of areas at highest risk for whale-ship collisions have any measures in place to protect whales from this threat. These measures include speed reductions, both mandatory and voluntary, for ships crossing waters that overlap with whale migration or feeding areas.
November 18, 2024
Q&A: UW professor discusses how academia can help battery manufacturing in the US
Jie Xiao, University of Washington professor of mechanical engineering, talks about batteries and how academia can help support the growing domestic battery manufacturing industry.
November 8, 2024
Miniature backpack-like tags offer insight into the movement of hummingbirds
A team led by scientists at the University of Washington and the University of Aberdeen attached tiny “backpack” trackers to hummingbirds in the Colombian Andes to learn more about their movements. As they report in a paper published Oct. 10 in the journal Ecology and Evolution, the tracking system will aid conservation efforts in this region by revealing the previously hidden movements of hummingbirds and other small animals.
November 5, 2024
Reconstructing ancient Andean climate provides clues to climate change
As Earth faces unprecedented climate change, a look into the planet’s deep past may provide vital insights into what may lie ahead. But knowledge of the natural world millions of years ago is fragmented. A 15-year study of a site in Bolivia by a joint U.S.-Bolivia team has provided a comprehensive view of an ancient ecosystem when Earth was much warmer than it is today, and changed how we look at the Andes.
November 4, 2024
NASA funds effort to study effects of the space environment on living organisms
NASA has awarded a five-year, $2.5 million grant to establish a regional scientific consortium based at the University of Washington, in partnership with Washington State University and the Pacific Northwest National Laboratory. The consortium will use an interdisciplinary approach to explore how the space environment — both in low-Earth orbit and beyond — affects living things.
October 30, 2024
UW researcher reveals ‘everything you (n)ever wanted to know’ about parasites in new children’s book
Chelsea Wood, a University of Washington associate professor of aquatic and fishery sciences, has an upcoming children’s book titled “Power to the Parasites! Everything You (N)ever Wanted to Know About the Creepy Crawlies Hidden in Your Home, Your Food, Your Pets – and Maybe Even in You!” The book introduces kids to the world of parasitism.
October 23, 2024
Rocky planets orbiting small stars could have stable atmospheres needed to support life
A new study finds that rocky planets orbiting small stars do have the potential for stable, life-supporting atmospheres. The finding supports continued study of the TRAPPIST-1 system and other top candidates in the search for life outside our solar system.
October 22, 2024
Paws of polar bears sustaining ice-related injuries in a warming Arctic
Polar bears in some parts of the high Arctic are developing ice buildup and related injuries to their feet. The changes appear to be an unexpected consequence of climate change, related to changing conditions in a warming Arctic.
October 17, 2024
Life could exist on Mars in shallow meltwater pools below icy surface, study suggests
Researchers think meltwater beneath Martian ice could host microbial life. New results show that dusty ice could allow deeper layers to melt, while allowing enough sunlight through to support photosynthesis.
October 4, 2024
Q&A: New dataset provides a robust picture of Hurricane Helene’s destruction — and could help design more resilient communities
UW researchers collaborated with people at multiple institutions to collect pre-storm data and place sensors to measure storm surge levels and wave height during Hurricane Helene’s landfall.
September 30, 2024
UW Climate Impacts Group contributes to new WA State Climate Resiliency Strategy
The University of Washington’s Climate Impacts Group has supported a newly released plan for state agencies to address the regional impacts of climate change. The plan, led by the Department of Ecology, includes 10 state agencies’ strategies to address climate impacts.
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
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
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
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?
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.”
July 1, 2024
Q&A: How the H5N1 bird flu outbreak could become humanity’s problem
A major outbreak of a new strain of bird flu — formally named Influenza A virus subtype H5N1 — has killed millions of wild birds and infected poultry, dairy cattle, domestic cats and a small number of humans. UW experts explain how bird flu evolves and what it could mean for humans.
June 13, 2024
Q&A: Finding varieties of corn that are adapted to future climates
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
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
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
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
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
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
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.
May 2, 2024
Qiang Fu, Raymond Huey elected to National Academy of Sciences
Two University of Washington researchers are among the newly elected members of the National Academy of Sciences. Qiang Fu, professor of atmospheric sciences, and Raymond Huey, professor emeritus of biology, are among those recognized with one of the highest honors a scientist can achieve.
April 30, 2024
Scientists solve chemical mystery at the interface of biology and technology
A University of Washington-led study has solved a mystery about organic electrochemical transistors: Why there is a lag when they are switched on. In the process paved the way to custom-tailored OECTs for a growing list of applications in biosensing, brain-inspired computation and beyond.
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