China's Tiangong-1 space station has come down in the Pacific Ocean, quite close to the "spacecraft graveyard".
Astronomer Dr Grant Christie joins Ryan Bradley, in for Graeme Hill, to delve into the sulphuric clouds of Venus and explore the dark energy of the outer galaxies.
A fly-through of the amazing region of the Westerlund 2 star cluster.
The animation begins with a backyard view of the southern night sky near the constellations of Carina and Vela.
A galaxy has been found that has no dark matter - a strange type of matter that only feels gravity and defies explanation using the Standard Model of particle physics.
Dr Christie says "It's a huge component [in the universe], take the dark matter away and you wouldn't have the universe."
Also, is there life adrift in the clouds of Venus?
Listen to the full audio with Dr Grant Christie above.
Weekend Variety Wireless with Ryan Bradley in for Graeme Hill, 8pm - midnight Saturdays and Sundays, on RadioLIVE and streaming live to the Rova app on Android and iPhone.