Introduction

This is 6 Minute English from BBC Learning English. This podcast is supported by advertising outside the UK. Have you ever made a snowman or enjoyed a cold drink on a hot summer's day? Astronomer Professor Melissa McClure worked with NASA scientists who found ice on Europa, one of Jupiter's moons. Here she explains to BBC World Service programme Science in Action, one theory linking ice to the beginnings of life on Earth. And as usual, we'll be learning some useful new vocabulary as well.