This week we celebrated International Women and Girls in Science Day (Feb 11th) and to honour that, we hear from Alyssa Carson who's big is goal is to get to space as an astronaut.  She is the paving the way there by focussing on the small steps, which includes research in astrobiology and lots of time spent on encouraging other girls into STEM too.  How does someone who is 20 years old know so early on in life what she wants..we find out..