Science On Top

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