Wanna see Mars' close approach? Just look up!

This episode shines a light on crystals, and they’re sparkling right back at us! We’ll zoom way in on a diamond to understand the structure that makes crystals special, and hear about some unexpected crystals, too (hint: chocolate chip cookies contain a few different crystals!). ...  Show more

We will be back next week with a new episode! This week we have an episode from our sister show Smash Boom Best: Slime vs Slinkies!Set out these two playthings on a table and see which one your kid grabs first. Is it the gooey, squishy, surprising slime? Or the springy, wiggly, w ...  Show more

How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there were computers, and sh ...  Show more

We spend a lot of time on top of our planet, but we don’t spend much time inside it. So it makes sense you might wonder what our planet is made of, deep deep down. Is it more rocks? Is it lava? Is it a gooey caramel center? And what about the other planets, like Mars and Jupiter? ...  Show more

Mars Gets Ready for Its Close-up Mars has fascinated Earthlings for millennia, ever since we looked skyward and found the red planet. Through telescopes, probes, and robots, scientists have gazed at its red rocks, craters, and canyons—and the latest rover, Perseverance, is poised ...  Show more

When you look up at the night sky, what do you see? A few stars, or a satellite, maybe even one of the seven other planets in our solar system? But how many planets are there in all of outer space? We asked astronomer Mark Popinchalk to help us find the answer! Got a question tak ...  Show more