Astronomer at the Space Telescope Science Institute in Baltimore Nikole Lewis presents research findings during a TRAPPIST-1 planets briefing, Wednesday, Feb. 22, 2017 at NASA Headquarters in Washington. Researchers revealed the first known system of seven Earth-size planets around a single star called TRAPPIST-1.
<bdi><a href="https://www.wikidata.org/wiki/Q71171454" class="extiw" title="d:Q71171454"><span title="American photographer">Bill Ingalls</span></a>
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