Astronomy Cast

After 20 years, it's time to make some changes. With your patronage we can ditch the ads & turn up the science. patreon.astronomycast.com

SURPRISE: We're gearing up to record LIVE on Youtube. Join us in 20min at youtube.com/live/mcn6f_P...

We've removed all ads from our podcasts. To keep this sustainable, we need to get our number of patrons up to 1500. We're just 25 away from 1200. Can we hit that next milestone by the end of Monday? PS - Paying patrons will get the next episode early. www.patreon.com/cw/Astronomy...

During the night, our Patreon crossed 1100 paid members! On Sept 1, we removed all ads, and all our content has always been released under a creative commons license. To make our ad free reality work, we need to get to 1500 patrons. Like our content? It's time to join! patreon.astronomycast.com

I want to welcome all the new people that have grown our Patreon from 830 people to the 1096 we have today. Our goal is 1500 people and we're 40% of the way there! Can we cross that 1100 members line today? I know we can with your help. Please share & join if you can. patreon.astronomycast.com

We are going LIVE with ep 802 - The first in our new Mission Tech series. Join us as we give you the 411 on Rockets and Spacecraft youtube.com/live/hW_eLqr...

This week... - We entered year 20 - We released podcast #800 - We gained our 1000th Patron here on Patreon Thank you for being part of our facts-based journey through the cosmos! Join us at patreon.astronomycast.com

9 away... Can we do this tonight? Pamela is observing with the teacup telescope and will stay up late we remain hopeful we will see 800 podcasts, 20 years, and 1000 patrons all come together in one glorious week.

We are now 10 people away...

For our No-Ads Future to work, we need to grow our Patreon audiences. For are so grateful for the 149 of you who have become patrons. But this is not enough to fill in the financial gap created by turning off ads. Mind the gap, and join patreon.astronomycast.com

To celebrate our 20th season, we thought we’d go back right to the beginning… of everything. Let’s wind the clock back to the earliest moments of the Universe. www.astronomycast.com/2026/09/800-...

We are ~10min away from the live recording of Astronomy Cast 800 as we start year 20 of our podcast, hosted by @fcain.universetoday.com & @starstryder.space Catch 800 and 801 on www.youtube.com/AstronomyCast

Astronomy Cast 799: Heavy-lift Rockets Starting at 2pm Boston / 7pm London / 11am Vancouver youtube.com/live/aDgA3ei...

Astronomy Cast #798: Summer Media List. Live recording coming up in 3...2... www.youtube.com/live/3vQt1UY...

We just put live our latest episode, ad-free and just for Patreons over at www.patreon.com/astronomycas... Learn all about the can't-miss highlights of our upcoming summer.

Weird day. Cool show planned. Join @fcain.universetoday.com and @starstryder.space as they discuss all the cool space events that should or could happen while we're on hiatus in July and August. (Don't worry, there are still 2 more episodes in this season!) youtube.com/live/tSIp-Rw...

Yes, we have no problems today! There will be a Live Recording of Astronomy Cast today at 2pm Boston / 11am Vancouver / 7pm London. youtube.com/live/-NcTe-9...

We'll be recording tomorrow.

Live Recording starting in 3...2... youtube.com/live/Wa1p6AO...

Got space rock? Today we talk meteorites from other worlds! www.youtube.com/live/WGx1NvL...

No star lives forever (although the smallest sure seem like they do!). When they die, any planets they may are going to experience some things. Let's discuss. Going live 2pm Boston / 11am Vancouver / 7pm London youtube.com/live/Me0MNCI...

One of humanity's fundamental questions is "where does life come from." We can't answer that question, but we can tell you where some of the stuff of life came from. Join @fcain.universetoday.com & @starstryder.space as they talk proteins. youtube.com/live/cJNpipC...

Part of our Patreon? Yes? Check your email for your ad free edition of this week's Astronomy Cast! Not a member? Well, the ad-filled version comes out tomorrow... Join Patreon and get more: www.patreon.com/cw/Astronomy...

Today we record AC 787: Evolved Stars. Tune in for an update from @fcain.universetoday.com & @starstryder.space on how stars approach death. www.youtube.com/live/jY1_q9a...

Our first episode of season 20 will also be our 800th episode. You folks watched @fcain.universetoday.com and @starstryder.space across so many evolutions of this show and their careers, and you know what... they're not done. They just have no idea how to celebrate next September. Thoughts?

Today our $5 and up Patrons get to hang out and ask @starstryder.space anything during office hours. Join now to get a link about 15 minutes before start. patreon.cosmoquest.org/posts/office...

Happy podcast day everyone! Join @fcain.universetoday.com & @starstryder.space as they take on Magnetars, the most magnetic little monsters so far discovered. youtube.com/live/iT3Pxmo...

We're recording this week's new episode at a weird day, at a weird time, but with all the people and science you love. Tune in for Magnetars Friday at 11am Boston / 8am Vancouver / 4pm London youtube.com/live/iT3Pxmo...

I love that they try to make this sound bad but the mere fact that 900 people could fund $3k per person in the middle class kinda highlights the reason it’s good

We're not recording live today: Pamela as covid (and Paxlovid and ginger candy). We hope to record later this week.

Join us for a LIVE recording of a double header of science. Starts 2pm Boston / 11am Vancouver / 7pm London Ep 783 Cataclysmic Variable Stars youtube.com/live/hzFgfN2... Ep 784 Off Label uses of Pulsars youtube.com/live/4XMJBiJ...

Pamela still has no working boiler, and today Fraser also has some things to deal with. This means we are now aiming for Friday. Thanks for your patience youtube.com/live/sVvY9HG...

You've probably heard the phrase "Let sleeping dogs lie," but have you heard the phrase "Let sleeping black holes wake up"? In today's live recording, Fraser & Pamela look at all the ways to black holes wake up & attack their surroundings. 2pm E / 11am P / 1900 UTC youtube.com/live/PpZRjII...

Monday! Monday! Monday! Our universe is filled with sleeping monsters & sometimes they wake up hungry. In this episode, we take a look at the science behind how and why black holes of all sizes can go from nothing to the triggers of massive high-energy power release. youtube.com/live/PpZRjII...

Can you do us a favor? If you like our podcast, can you leave us a review wherever you are listening? In the age of the algorithm, this really really helps our show grow.

Sometimes it's nice to dream about an asteroid or comet hitting Earth. In today's Astronomy Cast, Fraser & Pamela consider the different factors to consider when attacking a planet with an asteroid or comet. Catch it live at 11am Vancouver / 2pm Boston / 7pm London on youtube.com/live/sIVunut...

LIVE: #779 Milankovitch Cycles The Earth's orbit, tilt, and other physical attributes aren't quite as constant as you might think! Come learn how long-term changes do and don't affect our climate. Recording live at 2pm Boston / 11am Vancouver / 7pm London youtu.be/rTFbrCIkrfU

Want to hear your name on Astronomy Cast? Join our Patreon at the $10/month level or higher! To be fair, Pamela missed out on phonics, so correct pronunciation isn't guaranteed. Join to hear her mispronounces your name? That is a recommended strategy, actually. patreon.com/AstronomyCast

This week, @fcain.universetoday.com & @starstryder.space take on Dyson Swarms. Some say they'll solve global warming & the energy crisis. Others look for them as signs of alien civs. These theoretical satellite swarms could be the future (but probably aren't). youtube.com/live/cySk8O0...

Why are stars sphere-ish? Why do blackholes not eat everything? Why do pulsating stars pulsate? It all comes down to Eddington. In today's ep, @fcain.universetoday.com & @starstryder.space look at the Edditngton Limit. Live at 2pm Boston / 7pm London / 11am Vancouver. youtube.com/live/uijiic8...

Why is the universe dominated by Matter? This is the question Fraser and Pamela take on in today's live recording: youtu.be/kGY4t683Xro Join us at 2pm Boston / 7pm London / 11am Vancouver

In this Live Astronomy Cast episode, Fraser and Pamela take a look at the Hydrogen 21-cm line's out-of-proportion awesomeness. youtube.com/live/2uvcumU...

Happy #Podcast day, everyone! It is arguable that humanity now has the technological ability to live on Mars. It would be done at enormous expense & sacrifice, and there are some tricky problems we haven’t solved yet. Although we could live on Mars, should we? Now out wherever you get podcasts.

We're going live on a weird day and at a weird time because Fraser is travelling to UTC+7 while Pamela stays at UTC-6. Come be in the science. Twitch.tv/CosmoQuestX or whatever is live on YouTube.com/@AstronomyCast

Fraser is gearing up to travel, so we're recording RIGHT NOW!!! How many episodes will we record? No idea. What will we record? Many things. This is all @fcain.universetoday.com & @starstryder.space know! Join us on twitch.tv/CosmoQuestX or check out whatever is live on Youtube.com/@AstronomyCast