Tag: University of Washington

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Muon detectives share the Breakthrough Prize glory

David Hertzog with muon storage ring at Fermilab
University of Washington physicist David Hertzog checks out the Muon g-2 experiment at Fermilab in 2018. (Photo Courtesy of David Hertzog)

University of Washington physicist David Hertzog can’t wait to find out how hundreds of researchers who worked on a geeky project known as the Muon g-2 Collaboration will react when they hear they’ve each won thousands of dollars for that work.

The money is coming from this year’s $3 million Breakthrough Prize for fundamental physics, which was awarded tonight during a gala ceremony in Los Angeles. Hertzog and his colleagues decided that the prize should be divided equally among everyone who was an author on research papers relating to the decades-long series of muon experiments.

“There are students who were in and out of this thing — two years or less,” he said. “They’re going to be shocked out of their lives about something they did a long time ago that they don’t remember doing. They’re going to get a phone call or email from the Breakthrough people, and they’re going to go, ‘What!?’ That’s kind of fun.”

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Rubin Observatory team discovers 11,000 new asteroids

Visualization of asteroids discovered by Rubin Observatory in the inner solar system
A model of the inner solar system shows asteroids discovered by the Rubin Observatory in light teal. Previously known asteroids are dark blue. The model highlights almost 12,700 asteroids that the Rubin team has discovered over the course of a year and a half. (Photo: NSF–DOE Vera C. Rubin Observatory / NOIRLab / SLAC / AURA / R. Proctor. Star map: NASA / GSFC Scientific Visualization Studio. Gaia DR2: ESA / Gaia / DPAC. Image Processing: M. Zamani / NSF NOIRLab)

The Vera C. Rubin Observatory’s science team has discovered more than 11,000 new asteroids — a feat made possible by the Simonyi Survey Telescope’s advanced capabilities and data-crunching software developed at the University of Washington.

Rubin’s deluge of discoveries, based on a million early-stage observations that were collected over the course of a month and a half last summer, includes roughly 380 trans-Neptunian objects, or TNOs, and 33 previously unknown near-Earth objects. (Don’t panic: None of those near-Earth objects poses a threat to Earth.)

The data set also includes more than 80,000 previously known asteroids, some of which had been “lost” to science because of uncertainty about their orbits. The findings were confirmed by the International Astronomical Union’s Minor Planet Center, the global clearinghouse for small solar system objects.

These aren’t the first finds for the $800 million observatory in Chile, which made its “First Look” debut last June. Astronomers previously reported finding more than 1,500 asteroids during earlier test rounds.

“This first large submission after Rubin First Look is just the tip of the iceberg and shows that the observatory is ready,” UW astronomer Mario Jurić, who heads Rubin’s solar system team, said in a news release. “What used to take years or decades to discover, Rubin will unearth in months. We are beginning to deliver on Rubin’s promise to fundamentally reshape our inventory of the solar system and open the door to discoveries we haven’t yet imagined.”

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Universe Today

Scientists find evidence of faraway worlds colliding

Illustration: Star with two planets colliding in orbit
An artist's conception shows a planetary collision around a star called Gaia20ehk. (Credit: Andy Tzanidakis / Univ. of Washington)

Astronomers say unusual readings from a star system 11,000 light-years away suggest that two of the planets circling the star crashed into each other, creating a huge, light-obscuring cloud of rocks and dust.

The analysis, laid out this week in a paper published by The Astrophysical Journal Letters, could provide new insights into the occasionally cataclysmic process that governs the evolution of planetary objects — including our own planet Earth and its moon.

“There are only a few other planetary collisions of any kind on record, and none that bear so many similarities to the impact that created the Earth and moon,” University of Washington graduate student Anastasios Tzanidakis, the study’s lead author, said in a news release. “If we can observe more moments like this elsewhere in the galaxy, it will teach us lots about the formation of our world.”

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Rubin Observatory revs up its astronomical alert system

Illustration: Data alerts on night sky with Rubin Observatory in the mountains below
Each night, the Vera C. Rubin Observatory issues thousands of alerts about changes in the night sky. (NOIRLab / NSF / DOE-SC Illustration)

An astronomical alert system developed at the University of Washington started off with a bang this week, sending out 800,000 notifications about moving asteroids, exploding stars and other celestial changes detected by the Vera C. Rubin Observatory in Chile.

That Feb. 24 surge was just the first wave. Eventually, the Alert Production Pipeline is expected to produce up to 7 million alerts per night. Astronomers will use the system to sift through the torrent of data, zeroing in on events ranging from newly detected asteroids to supernovas, variable stars and active galactic nuclei.

“Rubin’s alert system was designed to allow anyone to identify interesting astronomical events with enough notice to rapidly obtain time-critical follow-up observations,” Eric Bellm, a UW astronomer who leads the Alert Production Pipeline Group for the Rubin Observatory, said today in a news release. “Rubin will survey the sky at an unprecedented scale and allow us to find the most rare and unusual objects in the universe. We can’t wait to see the exciting science that comes from these data.”

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This asteroid is spinning fast enough to set a record

Illustration: Fast-spinning asteroid surrounded by other space rocks
An artist’s conception zeroes in on asteroid 2025 MN45. (Credit: NSF-DOE Vera C. Rubin Observatory / NOIRLab / SLAC / AURA / P. Marenfeld)

Astronomers say they’ve found an asteroid that spins faster than other space rocks of its size.

The asteroid, known as 2025 MN45, is nearly half a mile (710 meters) in diameter and makes a full rotation every 1.88 minutes, based on an analysis of data from the Vera C. Rubin Observatory. “This is now the fastest-spinning asteroid that we know of, larger than 500 meters,” University of Washington astronomer Sarah Greenstreet said today at the American Astronomical Society’s winter meeting in Phoenix.

Greenstreet, who serves as an assistant astronomer at the National Science Foundation’s NOIRLab and heads the Rubin Observatory’s working group for near-Earth objects and interstellar objects, is the lead author of a paper in The Astrophysical Journal Letters that describes the discovery and its implications. It’s the first peer-reviewed paper based on data from Rubin’s LSST Camera in Chile.

2025 MN45 is one of more than 2,100 solar system objects that were detected during the observatory’s commissioning phase. Over time, the LSST Camera tracked variations in the light reflected by those objects. Greenstreet and her colleagues analyzed those variations to determine the size, distance, composition and rate of rotation for 76 asteroids, all but one of which are in the main asteroid belt between the orbits of Mars and Jupiter. (The other asteroid is a near-Earth object.)

The team found 16 “super-fast rotators” spinning at rates ranging between 13 minutes and 2.2 hours per revolution — plus three “ultra-fast rotators,” including 2025 MN45, that make a full revolution in less than five minutes.

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How the buzz over an ‘alien’ interstellar comet went viral

Photo of interstellar object 3I/ATLAS
An astrophotograph shows the interstellar comet 3I/ATLAS. (Copyright Victor Sabet and Julien De Winter, republished with permssion)

Is an interstellar spacecraft zooming through our solar system? That’s the big question for fans of unidentified flying objects — and for a researcher at the University of Washington who analyzed the speculation over the interstellar comet known as 3I/ATLAS.

Mert Bayar, a postdoctoral scholar at the UW Center for an Informed Public, focused on 3I/ATLAS to track how social-media influencers use over-the-top speculation to fill in information gaps.

“I’ve written previously on how expert opinions can fuel conspiracy theorizing through elite-driven rumoring and amplification,” Bayar explained in an email. “My academic interest in philosophy, epistemology and the politics of conspiracy theories, plus a personal interest in space-related conspiracy theories, led me to look more closely at 3I/ATLAS.”

His analysis, published this week, is titled “Alien of the Gaps: How 3I/ATLAS Was Turned into a Spaceship Online.” The title takes inspiration from a concept known as “God of the Gaps,” which traces how thinkers through the ages explained phenomena they couldn’t fully understand by appealing to the influence of higher powers.

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Astronomers hail observatory’s debut — and look ahead

Zeljko Ivezic with picture of Rubin Observatory
University of Washington astronomer Zeljko Ivezic talks about the Rubin Observatory in front of a photo of Rubin. (GeekWire Photo / Alan Boyle)

It’s been more than two decades since the University of Washington helped kick off the effort to get the Vera C. Rubin Observatory built in Chile — and now that it’s finished, UW astronomers are gearing up to get in on the first decade of discoveries.

The university’s role in the past, present and future of the Rubin Observatory and its 10-year Legacy Survey of Space and Time, or LSST, literally took center stage in front of a packed house at UW’s Kane Hall on June 26.

UW astronomer Zeljko Ivezic, who served as director of Rubin construction and is shifting his focus to his role as head of science operations for LSST, recalled the night of April 15, when Rubin’s first test images came in for fine tuning.

“We were all so happy, and we are still happy,” he said. “We had been dreaming about this night for two decades, and it finally arrived. And not only that, we quickly obtained beautiful data, but also we continued to do so, and every new image was better and better. The observatory is performing beyond all our expectations.”

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Fiction Science Club

Rubin Observatory throws a party to reveal first pictures

Long-exposure image of Rubin Observatory against night sky filled with star trails
A long-exposure image shows the Rubin Observatory beneath star trails. (Credit: Hernan Stockebrand via Rubin Observatory)

After more than 20 years of planning and construction, the Vera C. Rubin Observatory is ready for its grand opening, and the world is invited.

The observatory in the foothills of the Chilean Andes features a monster of a telescope, with an 8.4-meter-wide (28-foot-wide) mirror, coupled with what’s said to be the world’s largest digital camera.

It will survey the night sky every night for at least 10 years, producing about 20 trillion bytes of data every 24 hours. It would take you more than three years of watching Netflix, or over 50 years of listening to Spotify, to use that amount of data, according to the Rubin team.

The first images and videos are due to be unveiled on June 23, during a “First Look” webcast that will be shared online and at more than 300 in-person watch parties across the globe.

What will the images look like? Mario Juric knows, but he isn’t telling.

“I cannot tell you what’s on them, but I can tell you we just finished them, and they look amazing,” Juric, a member of the Rubin team and the director of the University of Washington’s DiRAC Institute, says on the Fiction Science podcast. “I did not spend a day doing what I was supposed to be doing, because I just spent it browsing through the images. … I could teach an entire class by just zooming in on different parts of this image and explaining what this object is.”

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Stealthy startup builds ‘Antibody Cages’ to fight diseases

Archon co-founders James Lazarovits and George Ueda
Archon Biosciences’ co-founders, James Lazarovits and George Ueda, lead a tour through their Seattle lab. (GeekWire Photo / Alan Boyle)

Three weeks after University of Washington biochemist David Baker won a Nobel Prize, the latest venture to spin out from his lab — Archon Biosciences — has emerged from stealth mode with $20 million in financing for a technology that uses computationally designed protein structures to treat cancer and other diseases.

The seed funding round was led by Madrona Ventures, with participation from DUMAC Inc., Sahsen Ventures, WRF Capital, Pack Ventures, Alexandria Venture Investments and Cornucopian Capital.

Archon’s proprietary protein structures, known as Antibody Cages or AbCs, have been years in the making. Archon’s CEO and co-founder, James Lazarovits, said the Nobel Prize that Baker won for his pioneering work in the field of protein design confirms his view that the newly unveiled startup is on the right track.

“It’s reaffirmed our conviction for why we’re in this place to begin with,” Lazarovits told me during a tour of Archon’s Seattle lab. “It’s doing things that were not possible before. â€Ĥ You could not do anything that we’re doing unless there was the convergence of all these different fields at this moment in time.”

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Rubin Observatory’s monster telescope takes shape

Rubin Observatory telescope mount assembly
The Simonyi Survey Telescope now has its mirrors and a camera in place. (Credit: Rubin Observatory)

The Vera C. Rubin Observatory’s 8.4-meter Simonyi Survey Telescope in Chile has now been equipped with all three of its mirrors, plus a camera for good measure.

Last week’s installation of the telescope’s combined primary/tertiary mirror represented a major milestone in the observatory’s 15-year-long design and construction effort.

“We have a telescope!” the observatory team declared in updates posted to Instagram, Threads, BlueSky and X / Twitter.

The wide-field survey telescope, which is named after Microsoft software pioneer Charles Simonyi, is expected to shed light on astronomical mysteries ranging from the nature of dark energy and dark matter to the potential existence of an as-yet-unseen “Planet X” in the far reaches of our solar system.

The telescope’s 8.4-meter-wide (27.5-foot-wide) primary/tertiary mirror makes use of a continuous surface with different curvatures that are designed to optimize image resolution inside a relatively compact support structure. The 3.4-meter-wide (11-foot-wide) secondary mirror was installed in July.

When it’s fully up and running, the Simonyi Survey Telescope is expected to generate 20 terabytes of data every night. But the current version of the telescope isn’t yet ready for prime time.

“This iteration has the commissioning camera — a smaller 144-megapixel version of Rubin’s huge, 3,200-megapixel camera — which is used for testing and troubleshooting,” the observatory team noted. “Rubin’s LSST Camera, the biggest digital camera in the world that will #CaptureTheCosmos in science operations, will be installed early next year after our summit staff complete the next round of tests.”

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