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Seismologists record 'soccer shake' during Sounders' MLS championship game | KING 5
Tuesday, November 12, 2019
The MLS championship game at Century Link Field gave a special opportunity for researchers from the University of Washington-based Pacific Northwest Seismic Network to see if the Sounders fans could light up a seismograph. Spoiler: They did. Elizabeth Urabn, Steve Malone and Mickey Cassar from the PNSN are quoted. Read More
Latest science shows how the 'biggest one' will unfold in the Northwest | KING 5
Friday, November 8, 2019
We often think of earthquakes originating from one single spot, spreading out like a bulls-eye. But the Cascadia subduction zone would be more like ripping a sheet. Erin Wirth, a postdoctoral researcher in Earth and space sciences at the UW, is quoted. Read More
Cargo spaceship lifts off with satellite made by students in Seattle | GeekWire
Monday, November 4, 2019
Northrop Grumman launched a robotic Cygnus cargo capsule to the International Space Station on Saturday, marking one giant leap for a small satellite built by students at the University of Washington and Seattle's Raisbeck Aviation High School. Paige Northway, a graduate student in Earth and space sciences at the UW, is quoted. Read More
'HuskySat-1' docks with International Space Station | KIRO 7
Monday, November 4, 2019
Over the weekend the first Washington student-built satellite launched into space, destined for the International Space Station. Read More
Washington students to make satellite history with HuskySat-1 | KOMO 4
Friday, November 1, 2019
Students are often told words of encouragement, such as "the sky is the limit." These University of Washington students opted to shoot for the stars instead. Read More
Phenomenally powerful superbolts follow unusual patterns | Geographical Magazine
Thursday, October 31, 2019
An analysis of nine year's worth of lightning data, covering two billion strikes has led to some unusual discoveries about the phenomenally powerful "superbolt." Robert Holzworth, professor of Earth and space sciences at the UW, is quoted. Read More
Washington's first student-built satellite preparing for launch
Thursday, October 31, 2019
A University of Washington satellite smaller than a loaf of bread will, if all goes well, launch this weekend on its way to low-Earth orbit. It will be the first student-built satellite from Washington state to go into space.
“It will be exciting once it’s in orbit,”said
Paige Northway, a UW doctoral student in Earth and Space Sciences who has been involved since the project’s inception. “To me, the completion will be when we can get data from the satellite and send instructions back.”
HuskySat-1’s last moments on Earth will be broadcast live on NASA TV. The satellites are hitching a ride on the Cygnus cargo spacecraft, whose first stop will be the International Space Station to resupply astronauts and swap out materials. In early 2020 the spacecraft will leave the station and fly up to an altitude of about 310 miles (500 kilometers), where a NASA engineer will eject the student-build satellites.
The UW creation is a type of CubeSat, a small satellite that measures exactly 10 centimeters (about 3 inches) along each side. HuskySat-1 is a “three-unit” system, meaning it’s the shape of a stack of three CubeSat-sized blocks. These miniature satellites were first created as a way for engineering students to test software with smaller, cheaper devices they could build from start to finish in a few years. But the devices are growing in popularity, with Planet and other companies now using nanosatellites for commercial ventures.
NASA’s CubeSat Launch Initiative helps students and nonprofit groups launch these instrument systems into space. The Washington State University satellite, CougSat-1, is scheduled to launch in October 2020.
The UW satellite weighs just under 7 pounds (3.14 kilograms) and took five years to design and build. Undergraduate and graduate students from aeronautics and astronautics, mechanical engineering, computer engineering, Earth and space sciences, physics and other departments spent hundreds of hours building the system in the Husky Satellite Lab.
Its trip into low-Earth orbit is organized by Nanoracks, a Texas company that, like Spaceflight Industries of Seattle and other businesses, coordinates smaller groups to provide access to launch vehicles.
After extensive testing and final checkouts this summer, Northway hand-delivered the satellite in September to the Nanoracks facility in Houston, where it was placed into the box that will carry it to space.
“These students have gained firsthand experience on what is required to build and launch a satellite, and aerospace companies have already snapped up many of them,” said Robert Winglee, a professor of Earth and space sciences and the team’s faculty adviser as director of the UW Advanced Propulsion Lab. “Meanwhile, the UW is making its first steps to a continuing hardware presence in space. What more could you wish for?”
Three antennas installed on the roof of Johnson Hall will allow students to get information like position and altitude and send instructions to the satellite as it passes overhead. A camera built in collaboration with students at Raisbeck Aviation High School in Tukwila, Washington, will send back grainy, black-and-white photos of Earth. Students will also be able to control the satellite’s camera and thruster remotely.
“A lot of information is taught in classes, but only in a hands-on environment can you experience things like design, integration of subsystems, project management and documentation,” said team member Anika Hidayat, a senior in mechanical engineering.
HuskySat-1 will orbit at an angle of 51.6 degrees, traveling between 51.6 degrees north and south, at an altitude of 310 miles (500 kilometers) and at more than 4 miles (7 kilometers) per second. Once the students locate their satellite they will be able to predict its travel path.
Some of the student-built parts will still be in test mode. A custom-built thruster uses sparks to vaporize small amounts of solid sulfur as a propellant. The thruster will fire about 100 times as the satellite passes over Seattle, only enough thrust to provide a slight nudge. A high-bandwidth communications system built by former graduate student Paul Sturmer, now at Blue Origin, transmits at 24 Gigahertz, allowing the satellite to quickly send reams of data. That system will send down a test packet from space.
“Usually people buy most of the satellite and build one part of it. We built all the parts,” Northway said. “It was a pretty serious undertaking.”
“Space odyssey: UW, WSU students building tiny, Kleenex-size satellites” Seattle Times - May 2017
Radio Amateur Satellite Corporation (AMSAT) page
HuskySat-1 in the international nanosats database
The UW group will control HuskySat-1 for three months. In the spring it will transfer ownership and responsibility to AMSAT, the Radio Amateur Satellite Corporation, which provided the main communication system. The satellite will begin to lose altitude in about three years and will burn up as it re-enters Earth’s atmosphere. (NASA requires that all such objects deorbit within 25 years.)
HuskySat-1 grew out of a special topics course in the UW Department of Earth & Space Sciences. In 2016 members formed a registered student organization, the Husky Satellite Lab at UW.
“Being involved with this has taught me a lot,” said current team captain John Correy, a UW graduate student in aeronautics and astronautics. “But beyond that, it’s just validation that I’m in the right industry.”
As the Husky Satellite Lab wraps up this half-decade-long effort it plans to next tackle a NanoLab project-- a partly prebuilt system that can be adapted to conduct experiments in microgravity -- for travel aboard a Blue Origin vehicle. Students plan to complete that project by spring of 2020.
HuskySat-1 was supported by a NASA Undergraduate Student Instrument Project award, which funded the satellite’s development and launch with a private space contractor. The team also was supported by NASA, the Washington NASA Space Grant Consortium, the UW and several companies that provided equipment for the satellite and antenna.Read More
Rediscovery of old sediment from beneath the Greenland ice sheet
Wednesday, October 30, 2019
Rare samples of ice & sediment from beneath the Greenland ice sheet, recently rediscovered after nearly 30 years in freezers in Copenhagen, are the subject of a new study involving ESS's Eric Steig. Read More
Can regenerative agriculture reverse climate change? Big Food is banking on it | NBC News
Tuesday, October 29, 2019
Regenerative agriculture works to draw carbon out of the atmosphere and into the soil, but there's an ongoing debate on how much carbon can be stored there and for how long. David Montgomery, professor of Earth and space sciences at the UW, is quoted. Read More
An atmospheric mystery: Scientist tracks the unusual superbolts lightning over oceans
Tuesday, October 22, 2019
Robert Holzworth a professor at the UW department of earth and space sciences and director of the World Wide Lightning Location Network (WWLLN), has been tracking lightning for about two decades. A recent study led by Holzworth shows the location and timing of superbolts, big strikes of lightning that release more than one million joules of electrical power — a thousand times more than the average stroke energy. Read More