If marine microbes are Earth's unsung heroes, year 12 student Emelia is singing their praises. 

They produce 50% of our oxygen, are a crucial part of the food pyramid and they can even help us understand the ancient world. 

In this episode of Podcast Next Gen, join Emelia as she unpacks marine microbes in all their fabulous forms.

Podcast Next Gen is a collaboration between Cosmos Magazine and the National Youth Science Forum. The reporters are year 12 students from across Australia – the next generation of scientists, science journalists and podcasters.

These ‘shortcast’ episodes have been written and recorded by the students, giving them the opportunity to work with real science journalists and editors to make their science concept come to life.