To celebrate Massachusetts STEM Week, middle- and high-school students are invited to Think Big!, a free event at the Newton Free Library on Saturday, October 26, 2PM-4PM, to meet 18 local STEM professionals and talk informally (over ice cream from Cabots!) about challenges, satisfactions, and career paths in the world of STEM. These mentors represent a wide range of STEM:  Microbiology, running-shoe design, software development, biomechatronics, computational biology, ecology, chemistry, drug design, solar entrepreneurship, 3D animation, manufacturing science, applied physics, genomics, and more. It’s free and space is limited, so register now. It’s sponsored by the Newton Free Library, NewtonSTEM, and the John M. Barry Boys & Girls Club, with help from the Newton LigerBots. You can see what earlier Think Big! events were like in November 2015, March 2018, and October 2018. For more information, email info@newtonstem.org.