Astronomers have catalogued 126 years of changes to a binary star system called HS Hydrae. Analyzing observations from astro-photographic plates in the late 1800s to TESS observations in 2019, they show that the two stars in HS Hydrae began to eclipse each other starting around a century ago, peaking in the 1960s. The degree of eclipsing then plummeted over the course of just a half century, and will cease around February 2021.
Here’s a quick look at some giftworthy books and music created by UW faculty and staff in 2020, and a reminder of some recent favorites.
The tiny Stingray Nebula unexpectedly appeared in the 1980s is by far the youngest planetary nebula in our sky. But a team of astronomers recently analyzed a more recent image of the nebula, taken in 2016 by Hubble, and found that it has faded significantly and changed shape over the course of just 20 years. If dimming continues at current rates, in 20 or 30 years the Stingray Nebula will be barely perceptible.
During this time of uncertainty and isolation, find solace in digital opportunities to connect, share, and engage. Each week, we will share upcoming events that bring the UW, and the greater community, together online. Many of these online opportunities are streamed through Zoom. All UW faculty, staff, and students have access to Zoom Pro via UW-IT. So Far So Good: Show and Q&A with Libby King October 29 – November 1, 7:30 PM | Online What is the experience of living in…
During this time of uncertainty and isolation, find solace in digital opportunities to connect, share, and engage. Each week, we will share upcoming events that bring the UW, and the greater community, together online. Many of these online opportunities are streamed through Zoom. All UW faculty, staff, and students have access to Zoom Pro via UW-IT. Velvet Sweatshops and Algorithmic Cruelty: Labor in the Global Tech Economy October 6, 5:00 PM – 6:15 PM | Online via Zoom As the tech economy…
During this time of uncertainty and isolation, find solace in digital opportunities to connect, share, and engage. Each week, we will share upcoming events that bring the UW, and the greater community, together online. Many of these online opportunities are streamed through Zoom. All UW faculty, staff, and students have access to Zoom Pro via UW-IT. Astronomer Emily Levesque: The Last Stargazers Book Launch August 3, 7:00-8:30 PM | Online University of Washington professor Emily Levesque discusses her new books at (online)…
An international team of astronomers has used mysterious fast radio bursts to solve a decades-old mystery of “missing matter,” material long predicted to exist in the universe but never detected — until now. The researchers have now found all of the missing “normal” matter in the vast space between stars and galaxies. The team, which includes scientists based in Australia, the United States and Chile, announced its findings in a paper published May 27 in the journal Nature.
Three undergraduate students at the University of Washington are among 396 around the country who have been named Goldwater Scholars for 2020.
Late last year, news broke that the star Betelgeuse was fading significantly, ultimately dropping to around 40% of its usual brightness. The activity fueled popular speculation that the red supergiant would soon explode as a massive supernova. But astronomers have more benign theories to explain the star’s dimming behavior. And scientists at the University of Washington and Lowell Observatory believe they have support for one of them: Betelgeuse isn’t dimming because it’s about to explode — it’s just dusty. In…
Victoria Meadows, professor of astronomy at the University of Washington and director of the UW’s Virtual Planetary Laboratory, talks about how upcoming missions like the James Webb Space Telescope will be able to characterize the atmospheres of potentially Earth-like exoplanets and may even detect signs of life. Meadows is delivering a talk on this subject on Feb. 15, 2020 at the American Association for the Advancement of Science annual meeting in Seattle.
Recent honors to UW faculty and staff include an early career award in astronomy, an honorary doctorate from the Delft University of Technology, a seat on Washington state’s new LGBTQ Commission and national honor for an English Department writing program.
Balancing the needs of open science with national security and journal sustainability, and respecting the beliefs of native populations near observatories are among current issues for the American Astronomical Society, said Paula Szkody, University of Washington professor of astronomy. She has begun a term as president-elect of the AAS, and will serve as the society’s president in 2020-2022.
An image captured earlier this year by the Hubble Space Telescope may look like a ghostly apparition, but it is not. Hubble is looking at a titanic head-on collision between two galaxies.
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.
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.
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.
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.
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.
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.
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.”
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 the University of Bern in Switzerland, and published Feb. 5 in the journal Astronomy and Astrophysics. Agol is among about two dozen co-authors. The scientists…
UW astronomers Brett Morris and James Davenport assisted in new research on “Tabby’s Star,” named for Louisiana State University astronomer Tabetha Boyajian.
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.
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 sky-gazing forebears. On Nov. 14, scientists with the California Institute of Technology, the University of Washington and eight additional partner institutions, announced that the Zwicky…
Scientists have used data from the intergalactic medium — the vast, largely empty space between galaxies — to narrow down what dark matter could be.
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.
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.”
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.