Planet Skysat image shows clouds of steam rising from the Hunga-Tonga Hunga-Ha’apai volcano as heat vaporizes a small crater lake on Janaury 7, 2021. NASA researchers are using this data to monitor activity on volcanic islands.

Small satellite constellations provide valuable communications links in the wake of natural disasters, according to speakers at the SmallSat Symposium here.

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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...