Last week we talked about the missions we're saying goodbye to. This week, we're going to talk about some upcoming missions to say hello to. Some are brand new ideas, others are, uh, recycled.

It's always sad to say goodbye, but when we send our robotic emissaries out into the cosmos, it's just a matter of time before they shut down. Today we're going to say goodbye to a few missions which have reached the end of their lives… But they were very good robots.

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 on a journey, never to return.

Streamed live on Nov 8, 2022.

Light pollution is big problem and it's only getting worse. Not just near cities, but everywhere thanks to increased satellite constellations. How bad is the problem, and how can we fix it?

Streamed live on Oct 31, 2022.

We're recording this episode on Halloween, so how could we resist but take advantage of this opportunity. Space is already terrifying enough, you know, with the vast endless emptiness, the incomprehensible mysteries, and the uncaring coldness. But here are some scary stories to spook it up a notch.

Space is a big place, with lots of galaxies, stars, planets, moons, and that means a lot of names. So how do astronomers name stuff, like comets, asteroids, exoplanets, craters?

Streamed live Oct 3rd.

This week we saw the incredible image of DART smashing into asteroid Dimorphous. Beyond avenging the dinosaurs, what can we learn scientifically from this and other asteroid/comet impact missions

Streamed live on Sep 26, 2022.

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.

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?

Climate change is on our mind 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 in the solar system and across the Milky Way?