On the 12th August, Suzie Imber spoke to Stemettes to discuss her favourite planet -Mercury. She also describes the questions we have about Mercury and all the ways these questions are trying to be answered.
Dr Ellen Ochoa is an engineer and former astronaut.
Over the past few years, our planet has faced a plethora of environmental challenges. From global climate strikes to wildfires in Australia, we are more aware than ever about our impact on our ecosystems.