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July 14, 2022 Chris Impey, _University of Arizona_ and Daniel Apai, _University of Arizona_ Life on Earth has dramatically changed the chemistry of the planet. Astronomers will measure light
that bounces off distant planets to look for similar clues that they host life. November 5, 2019 Daniel Apai, _University of Arizona_ and Benjamin Rackham, _Massachusetts Institute of
Technology (MIT)_ Beyond the outer edge of the Solar System, mysterious, unknown worlds await by the thousands. Astronomers can now finally find them and explore them - but will we find
another Earth? February 24, 2017 Elizabeth Tasker, _Japan Aerospace Exploration Agency (JAXA)_ Scientists have discovered seven Earth-sized planets packed around a dim star. February 22,
2017 David Rothery, _The Open University_ If there’s life on one of the Earth’s seven sisters, chances are it has spread to all of them. May 2, 2016 Adam Burgasser, _University of
California, San Diego_ We don’t need to look for Earth-like planets exclusively around Sun-like stars. Tiny, dim TRAPPIST-1 has only 11 percent the diameter of the Sun and is much redder.