HawkEye 360 operates a constellation of nine RF-monitoring satellites. Twenty-one additional satellites are under construction or built and awaiting launch. Credit: Hawkeye 360

SAN FRANCISCO — ​​HawkEye 360 has selected the University of Toronto Institute for Aerospace Studies Space Flight Laboratory to build its next generation of satellites to fly in formation and pinpoint the origin of radio-frequency signals.

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Debra Werner is a correspondent for SpaceNews based in San Francisco. Debra earned a bachelor’s degree in communications from the University of California, Berkeley, and a master’s degree in Journalism from Northwestern University. She is a recipient...