The Denver Post

University selected to build $40M instrument for NASA space mission

- By Annie Mehl

Over the next decade, researcher­s with the University of Colorado Boulder will design and build an instrument for a NASA mission that will help the world better understand the ways extreme weather conditions in space can impact Earth.

CU and the University of California Berkeley were recently selected by NASA to jointly design and build the instrument that will used during NASA’S Geospace Dynamics Constellat­ion mission, which will study Earth’s upper atmosphere.

David Malaspina, assistant professor at the Laboratory for Atmospheri­c and Space Physics at CU who is also working on the project, said the instrument will be flying about 200 miles up in Earth’s atmosphere, which is a similar distance from Boulder to Grand Junction.

“What our instrument is going to be exploring is this edge of space, where the atmosphere goes from being neutral gas — like what we breathe and live in — to ionized gas (plasma),” he said.

The instrument is expected to cost about $40 million, said Laila Andersson, a space plasma researcher at LASP.

Andersson said the project is still in the early stages. She said the instrument will not launch until 2027, at the soonest.

The instrument, known as the Atmospheri­c Electrodyn­amics probe for THERMAL plasma, will measure how the upper atmosphere responds to energy such as weather and the impacts it can have on power lines and GPS signals, Andersson said.

“When it’s highly turbulent, it will make the GPS signal decrease in quality, so your precision will go down,” she said. “Any signal that goes up to the satellite can be impacted by the region you are flying through. We need to understand where that happens and how it happens, so we can either predict or suggest better frequencie­s where this will not impact the informatio­n going from the surface to the satellites.”

Malaspina said for the first time, this mission will give scientists the ability to record measuremen­ts for both neutral gases and plasma — hot gases like the sun — at different points around the Earth all at the same time. He said this is critical in order to improve existing data and collect new data.

Malaspina said before people launch more satellites into the upper atmosphere, scientists need to know and understand more about weather patterns.

“I think the space weather applicatio­n of trying to understand and predict the impacts of space weather on Earth and near Earth space are vital things, especially as humanity puts more time and energy into moving into space and operating in space,” he said.

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