On Sunday Night, a space-craft will fly past Earth and drop a off a parcel. That capsule will begin its decent down to the Utah desert at about 8.42 Brisbane time.

And the spacecraft will then continue off on its next mission. Mark Rigby – the former curator of the Sir Thomas Brisbane Planetarium and Adjunct Research Fellow at the University of Southern Queensland – joined 4BC Weekends to talk you through it.

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