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Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Peter Miller

00:01:00 Surprisingly, a lot of plants in the tropics tend to have large leaves. A team of scientists at Macquarie University in Sydney may have worked out why: and it\'s a balancing act.

00:08:42 After 13 years, the Cassini mission is coming to a fiery end. It\'s been one of NASA\'s most successful - and beautiful - missions.

00:19:36 Data from the Juno spacecraft finds that Jupiter\'s powerful auroras aren\'t powered the same way that Earth\'s are.

00:30:28 Coffee County Soil Conservation District, in Tennessee, has found a new use for new underwear: testing soil. The degradation of the cotton underwear illustrates the abundance or shortage of microbes in the soil.

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This episode contains traces of "NASA\'s Cassini Spacecraft: A Journey\'s End" video produced by NASA Jet Propulsion Laboratory.