An alien asteroid, a message to Aliens and our thanks to spiders

Hannah, Malcolm and Andrew discuss a new Avatar therapy which is helping voice hearers and the neutrinos which actually do interact with our planet before we hear from Douglas Vakoch, an American search for extraterrestrial intelligence researcher, psychologist, and president of METI, a nonprofit research and educational organization devoted to transmitting intentional signals to extraterrestrial civilizations. 

Doug tells us why he thinks we're safe enough to be calling out to potential alien civilisations and discusses the message METI have just sent out to a nearby solar system.

Andrew also catches up with geologist Leanne Staddon to discuss the interstellar asteroid Oumuamua and Leanne's own research looking at the earliest materials on Planet Earth.

We all then find a way to thank the spiders before John Ford pops in for a couple of things that happened on this day.