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b'There appear to be more mini-Neptunes (also known as Super Earths) across our galaxy than any other type of planet.\\xa0 Hannah Wakeford wants to learn if some of them support life, and she\\u2019s doing this by exploring their skies. Curiosity, the Mars Science Laboratory rover, has reached an exciting and critical part of its mission of discovery. Senior editor Emily Lakdawalla provides an update. The beautiful Pasadena Public Library hosted Bruce Betts and Mat Kaplan for a special afternoon that included recording this week\\u2019s What\\u2019s Up. You can learn more about this week\\u2019s guests and topics at:\\xa0 http://www.planetary.org/multimedia/planetary-radio/show/2019/0501-2019-hannah-wakeford-mini-neptunes.htmlLearn more about your ad choices. Visit megaphone.fm/adchoices'