Hunting for Life Beyond Earth: Coronagraphs, Starshades, and Alien Biosignatures

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Hunting for Life Beyond Earth: Coronagraphs, Starshades, and Alien Biosignatures
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Planning is underway for NASA's Habitable Worlds Observatory In early August, scientists and engineers gathered in a small auditorium at Caltech to discuss how to build the first space telescope capable of detecting life on planets like Earth. The proposed mission concept, called the Habitable Worl

This artist’s concept shows the geometry of a space telescope aligned with a starshade, a technology used to block starlight in order to reveal the presence of planets orbiting that star.In early August, scientists and engineers gathered in a small auditorium at Caltech to discuss how to build the first space telescope capable of detecting life on planets like Earth. The proposed mission concept, called the Habitable Worlds Observatory , would be the next powerful astrophysics observatory after.

, the David Morrisroe Professor of Astronomy, and a senior research scientist at the Jet Propulsion Laboratory , which is managed by Caltech for NASA. “We are in a phase of technology maturation. The idea is to further advance the technologies that will enable the Habitable Worlds Observatory to deliver its revolutionary science while minimizing the risks of cost overruns down the line.”

This animation shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets. Credit: NASA

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