Microgravity - Tianna and Sammy investigate weightlessness in space by watching what happens to their favorite toys in a free-fall "drop box."
Mars - Young astronomers T.J. and Trey trek the Arizona desert to learn what infra-red imaging can reveal about the Martian landscape.
Lift Off - Megan, Monica, Jenny, and Emilia create minature weather monitors, launch them on their model rockets, to learn what it takes to successfully record data on a distant planet.
Scientist Profile - Dr. Ayanna Howard is a robotics research engineer who uses artificial intelligence (AI) to make robots "smarter."
Riddle - How can you tell if aliens are trying to contact Earth?
