Hi! My name is Marissa Tremblay and I am an assistant professor at Purdue University in the Department of Earth, Atmospheric, and Planetary Sciences. I measure noble gases inside of rocks and minerals to learn about their thermal histories. I love what I do because I get to work on a huge range of scientific questions, from how cold was our planet ~20,000 years ago at the end of the last ice age, to when and how did mountains grow many millions of years ago? In this photo, I am building part of the instrumentation in my lab that we use to measure noble gases. I participate in Science-A-Thon because I want to share with the communities I interact with (both where I live and online through social media) how pervasive and important science is in our everyday lives!