SAN FRANCISCO — Frustrated by a lack of support for the work they deem critical to preparing the next NASA mission to search for Earth-like planets orbiting nearby stars, a group of scientists is drafting a proposal for a new, multistep plan to demonstrate promising technologies.

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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...