Natural Sciences Division

A skyscraper-size asteroid was revealed in year-old telescope data thanks to a new algorithm that could change the way near-Earth objects are discovered. Mario Juric, professor of astronomy at the UW, is quoted.

A special algorithm designed to spot dangerous near-Earth asteroids appears to be so good it has spotted its very first one during an initial test. The UW's Mario Jurić, professor of astronomy, and Ari Heinze, research scientist in astronomy, are quoted.

A new technique for finding potentially hazardous asteroids before they find us has chalked up its first success. Ari Heinze, research scientist in astronomy at the UW, is quoted.

Big feet and short beaks have evolved in some hummingbirds that allow the birds to mooch nectar without helping the plant by transporting pollen. Alejandro Rico-Guevara, assistant professor of biology at the UW and curator of birds at the UW Burke Museum, is quoted.

An asteroid discovery algorithm — designed to uncover near-Earth asteroids for the Vera C. Rubin Observatory’s upcoming 10-year survey of the night sky — has identified its first “potentially hazardous” asteroid, a term for space rocks in Earth’s vicinity that scientists like to keep an eye on. The roughly 600-foot-long asteroid, designated 2022 SF289, was discovered during a test drive of the algorithm with the ATLAS survey in Hawaii. Finding 2022 SF289, which poses no risk to Earth for the foreseeable future, confirms that the next-generation algorithm, known as HelioLinc3D, can identify near-Earth asteroids with fewer and more dispersed observations than required by today’s methods. That is important because, though scientists know of more than 2,000 near-Earth asteroids, they estimate that another 3,000 await discovery!

A new type of light detection and ranging (LiDAR) system invented by Mo Li, professor of physics and of electrical and computer engineering at the UW, and his team is poised to shake up what's possible within the LiDAR realm. The team built a laser beam-steering device with no moving parts and put it on a chip, which makes it 1000 times smaller than other LiDAR devices currently available. Putting it on a chip also makes the device compact and sturdy, as well as relatively easy and inexpensive to fabricate.

A team led by researchers at the University of Washington reports that it is possible to imbue graphite — the bulk, 3D material found in No. 2 pencils – with physical properties similar to graphite’s 2D counterpart, graphene. Not only was this breakthrough unexpected, the team also believes its approach could be used to test whether similar types of bulk materials can also take on 2D-like properties. If so, 2D sheets won’t be the only source for scientists to fuel technological revolutions. Bulk, 3D materials could be just as useful.

A new study from the UW found that persistent heat waves in the marine environment linked to climate change are leading to the deaths of hundreds of thousands of seabirds several months later. Julia Parrish, UW professor of biology and of aquatic and fishery sciences and director of COASST and lead author of the study, is inteviewed.

New electronic devices? New data storage methods? UW Physics & Materials Sciences Professor Xiaodong Xu studies the properties of single atomic layer semiconductors. He looks for new materials and new ways to control electrical conductivity.

A new study from the UW found that persistent heat waves in the marine environment linked to climate change are leading to the deaths of hundreds of thousands of seabirds several months later. Julia Parrish, UW professor of biology and of aquatic and fishery sciences and director of COASST and lead author of the study, is inteviewed.

A team led by scientists and engineers at the University of Washington has announced a significant advancement in developing fault-tolerant qubits for quantum computing. In a pair of papers published June 14 in Nature and June 22 in Science, they report that, in experiments with flakes of semiconductor materials — each only a single layer of atoms thick — they detected signatures of “fractional quantum anomalous Hall” (FQAH) states. The team’s discoveries mark a first and promising step in constructing a type of fault-tolerant qubit because FQAH states can host anyons — strange “quasiparticles” that have only a fraction of an electron’s charge. Some types of anyons can be used to make what are called “topologically protected” qubits, which are stable against any small, local disturbances.

The four new graduates honored as College of Arts & Sciences Dean's Medalists for 2023 are all working to improve our world, in different ways. 

A poem by alum Patricia Clark (BA, 1974), about a UW astronomy class she took 51 years ago, is now headed to the moon on a NASA flight. 

By studying the light atoms emitted when stimulated by a laser, they were able to detect vibrations sometimes referred to as atomic "breathing," a feature fundamental to nature's building blocks. The UW's Mo Li, professor of physics and of electrical and computer engineering; Adina Ripin, a doctoral student in physics; and Ting Cao, assistant professor of materials science and engineering, are quoted.

Astronomers spotted a stellar explosion in the Pinwheel Galaxy last month. Within a week, James Davenport, research assistant professor of astronomy at the UW, and his colleagues were searching the stars for radio signals from alien civilizations who might have seen the same thing.