Department of Astronomy
October 24, 2019
NSF invests in cyberinfrastructure institute to harness cosmic data
The National Science Foundation awarded the University of Wisconsin-Milwaukee and nine collaborating organizations, including the University of Washington, $2.8 million for a two-year “conceptualization phase” of the Scalable Cyberinfrastructure Institute for Multi-Messenger Astrophysics.
September 26, 2019
Galaxy found to float in a tranquil sea of halo gas
An international team of astronomers has analyzed the signal from a fast radio burst — an enigmatic blast of cosmic radio waves lasting less than a millisecond — to characterize the diffuse gas in the halo of a massive galaxy.
September 19, 2019
Introducing VPLanet: A virtual planet simulator for modeling distant worlds across time
UW astrobiologist Rory Barnes and co-authors have created software that simulates multiple aspects of planetary evolution across billions of years, with an eye toward finding and studying potentially habitable worlds.
August 13, 2019
James Webb Space Telescope could begin learning about TRAPPIST-1 atmospheres in a single year, study indicates
New research from astronomers at the UW uses the intriguing TRAPPIST-1 planetary system as a kind of laboratory to model not the planets themselves, but how the coming James Webb Space Telescope might detect and study their atmospheres, on the path toward looking for life beyond Earth.
June 27, 2019
Astrobiology outreach: UW’s mobile planetarium lands at space conference
UW astronomy professor Rory Barnes shows off the astronomy department’s Mobile Planetarium to colleagues at AbSciCon2019, the national conference on astrobiology in Bellevue. He takes it to schools with a presentation on astrobiology for K12 students.
June 19, 2019
Abundance of gases in Enceladus’s ocean are a potential fuel — if life is there to consume it
The subsurface ocean of Saturn’s moon Enceladus probably has higher than previously known concentrations of carbon dioxide and hydrogen and a more Earthlike pH level, possibly providing conditions favorable to life, according to new research from planetary scientists at the UW.
April 11, 2019
Stars and stories: UW astronomer Emily Levesque gathering material for book on ‘true tales of observational astronomy’
Emily Levesque, UW assistant professor of astronomy, is gathering material for a new book to be called “The Last Stargazers: True Tales of the Colorful and Vanishing World of Observational Astronomy.”
February 7, 2019
All the data in the sky, alerted via UW eyes
The Zwicky Transient Facility, based at the Palomar Observatory, has identified over a thousand new objects and phenomena in the night sky, including more than 1,100 new supernovae and 50 near-Earth asteroids. University of Washington scientists are part of the ZTF team and led the development of the collaboration’s alert system, which informs science teams of possible new objects or changes to known objects in the sky.
January 10, 2019
Astronomers find signatures of a ‘messy’ star that made its companion go supernova
On Jan. 10 at the 2019 American Astronomical Society meeting in Seattle, an international team of astronomers announced that they have identified the type of companion star that made its partner in a binary system, a carbon-oxygen white dwarf star, explode. Through repeated observations of SN 2015cp, a supernova 545 million light years away, the team detected hydrogen-rich debris that the companion star had shed prior to the explosion.
January 8, 2019
Triangulum Galaxy shows stunning face in detailed Hubble portrait
As part of a University of Washington-led project, NASA’s Hubble Space Telescope has produced a stunningly detailed portrait of the Triangulum Galaxy, displaying a full spiral face aglow with the light of nearly 25 million individually resolved stars.
November 20, 2018
Study brings new climate models of small star TRAPPIST 1’s seven intriguing worlds
Not all stars are like the sun, so not all planetary systems can be studied with the same expectations. New research from a University of Washington-led team of astronomers gives updated climate models for the seven planets around the star TRAPPIST-1.
July 9, 2018
Oxygen levels on early Earth rose and fell several times before the successful Great Oxidation Event
Earth’s oxygen levels rose and fell more than once hundreds of millions of years before the planetwide success of the Great Oxidation Event about 2.4 billion years ago, new research from the University of Washington shows.
June 25, 2018
UW part of NASA network coordinating search for life on exoplanets
Researchers with the UW-led Virtual Planetary Laboratory are central to a group of papers published by NASA researchers today in the journal Astrobiology outlining the history — and suggesting the future — of the search for life on exoplanets, or those orbiting stars other than the sun.
May 14, 2018
Orbital variations can trigger ‘snowball’ states in habitable zones around sunlike stars
Aspects of an otherwise Earthlike planet’s tilt and orbital dynamics can severely affect its potential habitability — even triggering abrupt “snowball states” where oceans freeze and surface life is impossible, according to new research from UW astronomers.
May 1, 2018
UW astrobiologist Victoria Meadows receives SETI Institute’s Frank Drake Award
Victoria Meadows, University of Washington astrobiologist, professor of astronomy and leader of NASA’s UW-based Virtual Planetary Laboratory, has been named recipient of the 2018 Frank Drake Award from the SETI Institute. She is the first woman to receive the award.
April 12, 2018
Circumbinary castaways: Short-period binary systems can eject orbiting worlds
Planets orbiting “short-period” binary stars, or stars locked in close orbital embrace, can be ejected off into space as a consequence of their host stars’ evolution, according to new research from the University of Washington.
March 29, 2018
Stellar break-up likely behind ‘runaway’ star’s fast pace, researcher says
During a recent survey of supermassive stars, an international team of astronomers discovered a star that is in quite a hurry. As they report in a new paper, the team tracked one yellow supergiant star cruising along at about 300,000 miles per hour, a velocity that would get you from the Earth to the Moon in about 48 minutes.
February 15, 2018
Five UW scientists awarded Sloan Fellowships for early-career research
Five faculty members at the University of Washington have been awarded early-career fellowships from the Alfred P. Sloan Foundation. The new Sloan Fellows, announced Feb. 15, include Maya Cakmak, assistant professor of computer science and engineering; Jiun-Haw Chu, assistant professor of clean energy and physics; Arka Majumdar, assistant professor of electrical engineering and physics; Jessica Werk, assistant professor of astronomy; and Chelsea Wood, assistant professor of aquatic and fishery sciences.
February 6, 2018
UW astronomer Woody Sullivan assists in renovation of Olympia’s Territorial Sundial
After six months of repair and restoration — assisted by UW astronomer and sundial expert Woody Sullivan — Olympia’s iconic Territorial Sundial is back in place.
February 5, 2018
Watery worlds: UW astronomer Eric Agol assists in new findings of TRAPPIST-1 planetary system
A team of astronomers including Eric Agol of the University of Washington has found that the seven Earth-sized planets orbiting the star TRAPPIST-1 are all made mostly of rock, and some could even have more water — which can give life a chance — than Earth itself. The research was led by Simon Grimm of…
January 3, 2018
Space dust, not aliens: Two UW astronomers assist in new research on ‘mysterious’ star
UW astronomers Brett Morris and James Davenport assisted in new research on “Tabby’s Star,” named for Louisiana State University astronomer Tabetha Boyajian.
November 30, 2017
Giant black hole pair photobombs Andromeda Galaxy
A cosmic photobomb found as a background object in images of the nearby Andromeda galaxy has revealed what could be the most tightly coupled pair of supermassive black holes ever seen.
November 14, 2017
With launch of new night sky survey, UW researchers ready for era of ‘big data’ astronomy
The first astronomers had a limited toolkit: their eyes. They could only observe those stars, planets and celestial events bright enough to pick up unassisted. But today’s astronomers use increasingly sensitive and sophisticated instruments to view and track a bevy of cosmic wonders, including objects and events that were too dim or distant for their…
July 24, 2017
Dark matter is likely ‘cold,’ not ‘fuzzy,’ scientists report after new simulations
Scientists have used data from the intergalactic medium — the vast, largely empty space between galaxies — to narrow down what dark matter could be.
May 22, 2017
Kepler telescope spies details of TRAPPIST-1 system’s outermost planet
A University of Washington-led international team of astronomers has used data gathered by the Kepler Space Telescope to observe and confirm details of the outermost of seven exoplanets orbiting the star TRAPPIST-1.
May 17, 2017
Visiting astronomer at UW part of ‘Styrofoam’ planet discovery
David James, a visiting scientist with the UW Department of Astronomy, assisted in the just-announced Lehigh University-led discovery of an exoplanet 320 light-years away with a density so light it is being called a “Styrofoam planet.”
February 22, 2017
UW astronomer Eric Agol assists in new seven-planet NASA discovery using ‘distracted driving’ technique
UW astronomy professor Eric Agol is part of the large team of researchers that has just announced confirmation of several Earth-sized, potentially habitable planets orbiting a star about 40 light-years away.
February 21, 2017
Three UW scientists awarded Sloan Fellowships for early-career research
Three faculty members at the University of Washington have been awarded early-career fellowships from the Alfred P. Sloan Foundation. The new Sloan Fellows, announced Feb. 21, include Ali Farhadi, assistant professor of computer science and engineering; Emily Levesque, assistant professor of astronomy; and John Tuthill, assistant professor of physiology and biophysics.
February 15, 2017
Early Earth as exoplanet: NASA highlights just-published UW Virtual Planetary Laboratory research
Recently published research from the UW’s Virtual Planetary Laboratory (VPL) using ancient Earth as a stand-in for hypothetically habitable exoplanets has been highlighted by NASA in a feature article. Leading the research was Giada Arney, who was a UW astronomy doctoral student when doing the work and is now with NASA’s Goddard Spaceflight Center.
December 1, 2016
The many worlds of UW astronomer — and astrobiologist — Woody Sullivan
UW astronomer and astrobiologist Woody Sullivan discusses recent work and future plans in a multifaceted career that’s changing gears, but far from winding down.
August 29, 2016
New discovery Proxima b is in host star’s habitable zone — but could it really be habitable?
The world’s attention is now on Proxima Centauri b, a possibly Earth-like planet about 4.22 light-years away. It’s in its star’s habitable zone — but could it in fact be habitable? If so, the planet evolved very different than Earth, say researchers at the University of Washington-based Virtual Planetary Laboratory.
February 29, 2016
Life or illusion? Avoiding ‘false positives’ in the search for living worlds
New research from the UW-based Virtual Planetary Laboratory will help astronomers better identify — and thus rule out — “false positives” in the search for life beyond Earth.
February 23, 2016
Four UW scientists awarded Sloan Fellowships for early-career research
Four faculty members at the University of Washington have been awarded early-career fellowships from the Alfred P. Sloan Foundation. The new Sloan Fellows, announced Feb. 23, include Bingni Brunton, assistant professor of biology; Christopher Laumann, assistant professor of physics; Matthew McQuinn, assistant professor of astronomy; and Emina Torlak, assistant professor of computer science and engineering….
February 12, 2016
Caught in the act: UW astronomers find a rare supernova ‘impostor’ in a nearby galaxy
UW astronomers Breanna Binder and Ben Williams have identified a rare type of ‘supernova impostor’ in a nearby galaxy, with implications for how scientists look at the short, complex lives of massive stars.
February 2, 2016
Reflections on the habitability of — Planet Earth
We know the Earth is habitable because — well, here we are. But would it look like a good candidate for life from hundreds of light-years away?
January 8, 2016
Quiet quasar has apparently eaten its fill
Astronomers with the Sloan Digital Sky Survey (SDSS) announced that a distant quasar ran out of gas. Their conclusions, reported Jan. 8 at the American Astronomical Society meeting in Kissimmee, Florida, clarify why quasar SDSS J1011+5442 changed so dramatically in the handful of years between observations.
October 29, 2015
UW scientists are the first to simulate 3-D exotic clouds on an exoplanet
A nearby exoplanet has an atmosphere that might be similar to Earth’s before life evolved. In an attempt to simulate the structure of this exoplanet’s atmosphere, UW researchers became the first to simulate three-dimensional exotic clouds on another world.
October 19, 2015
In astronomy-themed concert, Benaroya Hall launches audience to the cosmos
A Nov. 7 concert in Seattle’s Benaroya Hall promises to offer the audience a decidedly stellar musical experience. The event, “Origins: Life and the Universe,” will pair live performances of new compositions with video and slideshow scenes depicting cosmic events like the Big Bang, as well as scenes from distant worlds and Earth’s own life-filled…
October 5, 2015
Where to look for life? UW astronomers devise ‘habitability index’ to guide future search
Astronomers with the University of Washington’s Virtual Planetary Laboratory have created the “habitility index for transiting planets” to rank exoplanets to help prioritize which warrant close inspection in the search for life beyond Earth.
September 28, 2015
Earth-like planets around small stars likely have protective magnetic fields, aiding chance for life
Earth-like planets orbiting close to small stars probably have magnetic fields that protect them from stellar radiation and help maintain surface conditions that could be conducive to life, according to research by UW astronomers.
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