In a particularly bloody episode, Chad and Mike discuss the A, B, and O blood types, as well as the Rh positive and negative. What do these designations mean? And what are some of the health consequences of these differences?This episode came about because of a listener question. If you have questions, email us at crisscrossingsci@gmail.com

Mike and Chad discuss the first three Nobel award announcements for 2025. We review the science behind the medicine, physics, and chemistry prizes that will be awarded in Stockholm later this year.If you have ideas for future episodes, or just questions that make you curious, email us at crisscrossingsci@gmail.com and we will try to answer your questions in a future episode.

Mike and Chad discuss new findings by the James Webb Space Telescope about blackholes formed at the beginning of the universe, before there were even stars.Subscribe to this podcast to have the latest episodes automatically downloaded as soon as they are available.

Mike and Chad are revisiting this episode about the physics of baseball. So grab some peanuts and crackerjacks, and enjoy this classic episode.If you have science questions that you have always wondered about, email us at crisscrossingsci@gmail.com

Chad and Mike discuss carnivorous plants, such as the Venus fly trap. They are surprisingly common and many species independently developed the tools needed to consume flies.If you have a topic you'd like us to sink our teeth into, email us at crisscrossingsci@gmail.com

Mike and Chad are on vacation, but still have the moon to keep us together. So enjoy this episode from the vault about where the moon came from.

Mike and Chad invite Kevin Curry back in the studios to talk about movies and the best Science in Science Fiction for the Third Annual Crisspies. This year, we are talking about time travel, which is tricky because time travel is already science fiction. But, we narrowed down the list to the top five contenders and debated which movies should come out on top.Do you agree with our assessment? Let us know on any social media platform.

Mike and Chad discuss some of the ongoing space missions currently in operation by NASA as well as the European Space Agency, and space agencies from India and Japan. There is a lot of research taking place that deserves recognition.To recognize this podcast, subscribe and get the benefit of automatically downloading the latest episode as soon as it becomes available.

In celebration of the latest Jurassic Park movie, we are reposting an episode from 2022 about how the birds escaped Jurassic Park. Enjoy.This episode came from a listener question. To ask questions for yourself, email us at crisscrossingsci@gmail.com or DM us on social media platforms.

Chad and Mike talk about how biological molecules are often left handed or right handed. This affects us in many fascinating ways.Once you listen to this episode, be sure to subscribe so that you get future episodes automatically downloaded.

Mike and Chad are re-listening to this episode from 2020 about the married couple of Marie and Pierre Curie, each of whom won at least one Nobel Prize and were an amazing scientific power couple. If you want to know more about science, be sure to subscribe wherever you find the finest podcasts.

Chad and Mike invite Dr. David Lewis, a member of the Confederated Tribes of Grand Ronde and an anthropologist from Oregon State University, onto the podcast. David talks with us about what this land looked like and how land was managed for thousands of years.Also check us out on social media.

Mike and Chad are re-sharing this episode with Stephen Tufte, a physics professor from Lewis and Clark. He shared with us the science behind playing the mandolin and what makes it different from a guitar.

Chad and Mike discuss the ancestral plight of turtles and how strange a journey it was for sea creatures to come onto land, then return to the water, and (in the case of the tortoise) return back to land.To join us on other learning journeys, subscribe to the podcast. That way, you'll download the latest episodes automatically.

Mike and Chad discuss angular momentum and some of the seemingly counterintuitive predictions that come from it. Yet so many things in our daily lives rely on this concept.

Chad and Mike invite Nobel Laureate Dr. Randy Schekman to discuss his research into yeast cells and the mechanisms that yeast (and human) cells use to direct traffic. Proteins that are created within the cell need to be pushed into the appropriate places and Schekman is one of the discoverers of those mechanisms.Enjoy these episodes ad free!

Chad and Mike are preparing for our next episode in which we talk to Nobel Laureate Randy Schekman. He won the award for learning the mechanisms for how proteins within the cells are moved to where they need to go. The process can be very complicated, so we are doing a pre-episode to help us understand more. So be sure to listen to both this episode and the next one with our special guest.

Mike and Chad celebrate Einstein's 146th birthday by discussing his Greatest Blunder. Follow us on TikTok, Instagram, or YouTube Shorts.

Chad tells Mike all about moss, and the entire ecosystem that lives in that tiny, fluffy, world.Look for crisscrossing Science on Social media!

Mike and Chad discuss milk. Why do mammals drink it? How do mammals produce it? What is pasteurization? Answers to these questions, and more, when you listen to crisscrossing Science!