SoT 320: That's Not A Knife

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:24 The giant tortoise Lonesome George, the last of his species, was possibly as old as 102 when he died in 2012. Now sequencing of his DNA has revealed a number of genes that could give us clues about human life expectancy and particularly cancer. 00:08:10 Research into epilepsy has accidentally led to some exciting new developments in the treatment of depression and mood disorders. This is a serendipitous line of inquiry that came from observations of electrical stimulation of areas of the brain. 00:16:01 When it comes to hormonal birth control, it's pretty much a ladies-only club. But for decades researchers have been trying to develop a male pill, and now a reasonably large-scale trial is about to get underway looking at a contraceptive gel. 00:23:39 It's one of the greatest cosmological mysteries of our time - what makes up 95% of the universe. But the "Dark Fluid" theory could potentially solve the questions of both dark matter and dark energy. Perhaps.   This episode contains traces of ABC10's "Geek Labs" segment playing sounds recorded by the Mars InSight lander.