We chat with Food Technologist Michelle Richardson about engineering healthy and appetizing meals for astronauts bound for Mars.

Museum educator Meghan tells us all about excrement, from the biggest to the most frequent to the strangest poop in the animal kingdom.

Exotopography is the study of mountain ranges on worlds beyond our solar system. We talked to the field's creator, Moiya McTier, to find out more.

We talked to a veteran spacewalker, astronaut Jeff Hoffman, and asked him your questions about extra-vehicular activity.

Hear a canine authority, museum educator Mayra, tackle some of the amazing questions we've received about dogs.

Museum educator Zoe answers audience questions having to do with chemistry in the kitchen, from how to make the best fluffy and chewy cookie, to which homemade breads are superior (chemically speaking).

We talk to Ranch Kimball, a high school senior, who is applying the engineering design process to help his community through the COVID-19 pandemic.

Lava comes in all shapes, sizes and forms. Becca, our geology specialist, answers some of the question that our listeners have asked about lava.

Listen in on a conversation with Heather and her mother Kathy, who was just 8 years old during the polio epidemic in the 1950s. Kathy became part of the ground-breaking study to find a polio vaccine, a first step in leading to the near-eradication in the US of this terrible disease.