Astronomy Cast

Astronomy Cast Ep. 665: The Age of Reionization by Fraser Cain & Dr. Pamela Gay The Cosmic Microwave Background Radiation tells us so much about the Universe. After that era, the Universe went dark. Then, as gas pulled together into the first stars and eventually galaxies, light returned, beginning the Age of Reionization.   This video was made possible by the following Patreon members: Burry Gowen Stephen Veit Jordan Young Jeanette Wink Kevin Lyle Venkatesh Chary Andrew Poelstra Brian Cagle David Truog Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 664: The First Stars by Fraser Cain & Dr. Pamela Gay This show is sponsored by BetterHelp.  Visit today to get 10% off your first month.   The Sun is a third-generation star, polluted with metals from long-dead suns. Astronomers have also discovered second-generation stars, with very low metallicity. But theories suggest there must be a first generation, with stars made from only pure hydrogen and helium. Can we ever find them?   This video was made possible by the following Patreon members: Burry Gowen Stephen Veit Jordan Young Jeanette Wink Kevin Lyle Venkatesh Chary Andrew Poelstra Brian Cagle David Truog Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 663: End of Year Observing Events by Fraser Cain & Dr. Pamela Gay We generally save our stargazing suggestions for the summer, when it’s warmer in the northern hemisphere. But you’re tough, you can handle a little cold. And it’s worth it because there are some wonderful things you can see in the night sky this time of year.   This video was made possible by the following Patreon members: Burry Gowen Stephen Veit Jordan Young Jeanette Wink Kevin Lyle J.F. Rajotte Venkatesh Chary Andrew Poelstra Brian Cagle David Truog Aurora Lipper David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 662 - Looking Ahead at New and Recycled Missions by Fraser Cain & Dr. Pamela Gay 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.   This video was made possible by the following Patreon members: Burry Gowen Stephen Veit Jordan Young Jeanette Wink Kevin Lyle J.F. Rajotte Venkatesh Chary Andrew Poelstra Brian Cagle David Truog Aurora Lipper David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies by Fraser Cain & Dr. Pamela Gay 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.   This video was made possible by the following Patreon members: Burry Gowen Jordan Young Kevin Lyle Jeanette Wink Stephen Veit J.F. Rajotte Andrew Poelstra Venkatesh Chary David Truog TheGiantNothing Aurora Lipper David Gerhard Schwarzer Will Hamilton Brian Cagle   THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 659: Clear Skies, Bright Satellites by Fraser Cain & Dr. Pamela Gay 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?  

Astronomy Cast Ep. 658: Space Exploration Horror Stories by Fraser Cain & Dr. Pamela Gay 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.

Astronomy Cast Ep. 657: Astronomical Naming Schemes by Fraser Cain & Dr. Pamela Gay 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?   This video was made possible by the following Patreon members: Burry Gowen Jordan Young Kevin Lyle Stephen Veit Gerhard Schwarzer J.F. Rajotte Andrew Poelstra Aurora Lipper Brian Cagle David David Truog Jeanette Wink TheGiantNothing Venkatesh Chary Will Hamilton THANK YOU! - Fraser and Dr. Pamela

Astronomy Cast Ep. 656: Smashing Asteroids for Science! by Fraser Cain & Dr. Pamela Gay 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.

Astronomy Cast Ep. 655: 65 Years of Space: Sputnik 1 Anniversary by Fraser Cain & Dr. Pamela Gay 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.

Astronomy Cast Ep. 654: The Side Effects Of Clean Energy by Fraser Cain & Dr. Pamela Gay 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?

Astronomy Cast Ep. 653: Climate Change: Looking at the Variables by Fraser Cain & Dr. Pamela Gay 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?

Astronomy Cast Ep. 652: The Rocket Race Towards Reusability by Fraser Cain & Dr. Pamela Gay 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.

Astronomy Cast Ep. 651: Artemis & The Decline of Single Use Rockets by Fraser Cain & Dr. Pamela Gay Season 16 opener. On the day that we’re recording this, NASA’s Space Launch System is about to blast off. But everyone is expecting it’ll be delayed to October. When it does launch, it’ll be the most powerful rocket on Earth. Well, until Starship blasts off. So are we about to see the end of single-use rockets and enter the era of reusable rocketry?

Astronomy Cast Ep. 650: Did JWST Work? by Fraser Cain & Dr. Pamela Gay Sign up through to make a difference in the climate crisis, and Wren will plant 10 extra trees in your name! Well, this is it. We’re FINALLY going to talk about the James Webb Space Telescope. After decades of development, delays, budget creep, the powerful infrared observatory is at its final home at the L2 Lagrange point. Yesterday (at the time we’re recording this) we saw the first scientific images from the telescope and according to Pamela’s rules, we’re finally allowed to talk about it.

Astronomy Cast Ep. 649: Highlights From NASA’s Holiday Ruining History by Fraser Cain & Dr. Pamela Gay Have you ever noticed that significant space and astronomy events seem to happen during the holidays? It’s not a coincidence. There’s actually a reason why. Today we’ll talk about some of the key events that happened during holidays and the underlying rationale.

Astronomy Cast Ep. 648: Summer Observing by Fraser Cain & Dr. Pamela Gay Summer is officially, astronomically here, and for the folks in the northern hemisphere that means it’s a perfect time to head outside and see what’s happening in the sky. Today we’ll give you a good list of things to keep an eye out for with or without a telescope.

Astronomy Cast Ep. 647: Best Sci Fi Beach Reading by Fraser Cain & Dr. Pamela Gay Summer’s here! And that means finally tackling that huge list of books piled up on your bedside table and filling up your Kindle. What books do we recommend for some fun reads this summer?   - The Kaiju Preservation Society by John Scsalzi - Space Opera by Katherine Valente - The Culture series by Iain M. Banks (The Player of Games) - Six Wakes by Mur Lafferty - Marco and the Red Granny by Mur Lafferty - Reamde and The Fall by Neil Stephenson - Bobiverse series by Dennis E. Taylor - Project Hail Mary by Andy Weir - Childhood’s End by Arthur C. Clark - Lagoon by Nnedi Okorafor - Packing for Mars by Mary Roach - The Mission: A True Story by David Brown - Galaxy: The Prettiest Star by Jadzia Axelrod

Astronomy Cast Ep. 646: Our Long Term Future in Space by Fraser Cain & Dr. Pamela Gay We always say that we're living in golden age of space and astronomy, but it feels like things are just accelerating. Space travel is happening! What does the long-term future hold for our place in the Universe?

Astronomy Cast Ep. 645: The Future of the ISS by Fraser Cain & Dr. Pamela Gay The International Space Station has been continuously inhabited for over 20 years now, serving as a peaceful collaboration between space-faring nations. But it's a machine, and it's getting old. In addition, the Russian invasion of Ukraine has made things, complicated. What's the future for the ISS?