Dr Karl On Triplej

Dying suns, falling in love and earwax

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Sinopse

What makes a planet a planet? Why haven't we gone back to the moon? What'll happen to the International space station when we're done with it? Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. Joining her today was Professor Lisa Harvey-Smith, astrophysicist with the CSIRO!