As the crew of The Tardigrade prepare to land on Venus, Matthew heads back down to Earth to get some supplies.
Whilst back on the home planet, he pays a visit to St. Andrews Observatory to have a look at the James Gregory Telescope - the biggest telescope in Scotland.
The custodian of this fine piece of equipment is Dr. Aleks Scholz, an observational astronomer who studies problems in star and planet formation.
This was a good opportunity for us all to learn something new, so Aleks is going to talk us through the life cycle of a star.
Things to Learn