What makes stars twinkle;  Are wormholes in outer-space real;  Will the whole universe eventually get sucked into a giant black hole???
These are all questions answered in this week’s episode, with a focus on SPACE!!!
With Jim and James away, Steph and Sarah speak with astrophysicists Professor Duncan Forbes from Swinburne University (over the phone) and Dr. Paul Lasky from Monash University (in the studio), who explain about gravity, black holes, colliding galaxies, and demonstrated how to make a noise like a gravitational wave (yes, for real).
The episode also features a bonus guest, Jacquie O’Brien from Zoos Victoria, who explains how changing food labelling can save the orangutans.
 Aired on the 20th of June, 2016.