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BLUE MARBLE  From the outside, you would never know how hostile Venus’ surface is. This false-color image of Venus from the Akatsuki spacecraft shows a cloud-covered atmosphere as complex and dynamic as Earth’s.

illustration of two inner TRAPPIST-1 planets

PEERING THROUGH THE MIST  Starlight filtering through the atmospheres of the planets orbiting TRAPPIST-1 (shown here in an artist’s illustration of the two innermost worlds) can give scientists a clue to the planets’ habitability. Scientists have now probed the atmospheres of the four middle planets, which could be well-suited for life.

Kepler 90 system

THIRD ROCK  The keen eye of an AI program discovered that the star system Kepler 90, illustrated here, has an eighth world (dubbed Kepler 90i), which was previously overlooked in exoplanet searches.

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