Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies

Moons orbit planets, planets orbit stars, stars orbit within galaxies. It’s orbits all the way down. But occasionally objects can receive a powerful kick that sends them off on a journey, never to return.

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15 seasons and more than 600 episodes await.

Ep. 655: 65 Years of Space: Sputnik 1 Anniversary

Ep. 655: 65 Years of Space: Sputnik 1 Anniversary

It’s been about 65 years since the Soviets launched the first orbital satellite into low Earth orbit: Sputnik 1. Now there are thousands of satellites in orbit, with tens of thousands on the way. Let’s look at the impact that Sputnik had on the history of spaceflight.

Ep. 654: Side Effects of Clean Energy

Ep. 654: Side Effects of Clean Energy

To battle climate change, we’ll need to rapidly move to carbon-free sources of energy. But this technology isn’t a free lunch. They require metals, generate waste and deplete the environment. What’s the best way to balance this shift?

Ep. 653: Climate Change: Looking at the Variables

Ep. 653: Climate Change: Looking at the Variables

Climate change is on our minds these days, with increasing wildfires, droughts and floods. What are the variables that play into a planet’s changing climate, and what can this teach us about the search for habitable planets across the Milky Way?

Ep. 652: The Rocket Race Toward Reusability

Ep. 652: The Rocket Race Toward Reusability

Last week we talked about how single-use rocketry has changed over time, and the role it still plays in launching payloads into orbit and beyond. Today, we’ll address the stainless steel elephant in the room and talk about the shift to reusability.