JPL News - Day in Review

["NASA Jet Propulsion Laboratory" <jplnewsroom@xxxxxxxxxxxx>]

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DAY IN REVIEW

Light Echoes Give Clues to Protoplanetary Disk Astronomers used echoes of light to determine the distance from a star to the inner wall of its surrounding protoplanetary disk. › Read the full story

Cassini Explores a Methane Sea on Titan A new study finds that a large sea on Saturn's moon Titan is composed mostly of pure liquid methane, independently confirming an earlier result. › Read the full story