299 episodes

Take a fact-based journey through the cosmos. Tune in to hear weekly discussions on astronomical topics ranging from planets to cosmology. Hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (SIUE), this show brings the questions of an avid astronomy lover direct to an astronomer. Together Fraser and Pamela explore what is known and being discovered about the universe around us. Astronomy Cast is supported through individual donations and the sponsorship of Swinburne Astronomy Online.

Astronomy Cast Wizzard Media

    • Natural Sciences

Take a fact-based journey through the cosmos. Tune in to hear weekly discussions on astronomical topics ranging from planets to cosmology. Hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (SIUE), this show brings the questions of an avid astronomy lover direct to an astronomer. Together Fraser and Pamela explore what is known and being discovered about the universe around us. Astronomy Cast is supported through individual donations and the sponsorship of Swinburne Astronomy Online.

    Ep. 559: The Surface of the Sun

    Ep. 559: The Surface of the Sun

    A brand new telescope has completed on Maui's Haleakala, and it has just one job: to watch the Sun in unprecedented detail. It's called the Daniel K. Inouye telescope, and the engineering involved to get this telescope operational are matched by the incredible resolution of its first images.

    • 30 min
    Ep. 558: Supernova SN 2006gy

    Ep. 558: Supernova SN 2006gy

    We've been following this story for more than a decade, so it's great to finally have an answer to the question, why was supernova 2006gy so insanely bright? Astronomers originally thought it was an example of a supermassive star exploding, but new evidence provides an even more fascinating answer.

    • 30 min
    Ep. 557: Red Dwarfs: Friend or Foe

    Ep. 557: Red Dwarfs: Friend or Foe

    On the one hand, red dwarfs are the longest lived stars in the Universe, the perfect place for life to hang out for trillions of years. On the other hand, they're tempestuous little balls of plasma, hurling out catastrophic flares that could wipe away life. Are they good or bad places to live?

    • 29 min
    Ep. 556: Multi Messenger Astronomy

    Ep. 556: Multi Messenger Astronomy

    For the longest time astronomers could only study the skies with telescopes. But then new techniques and technologies were developed to help us see in different wavelengths. Now astronomers can study objects in both visible light, neutrinos, gravitational waves and more. The era of multi-messenger astronomy is here.

    • 30 min
    Ep. 555: Satellite Constellations and the Future of Astronomy

    Ep. 555: Satellite Constellations and the Future of Astronomy

    The other big issue at the AAS was the challenge that astronomy is going to face from all the new satellite constellations coming shortly. There are already 180 Starlinks in orbit, and thousands more are coming, not to mention the other constellations in the works. What will be the impact on astronomy, and what can we do about it?

    • 29 min
    Ep. 554: Big Telescope Controversy in Hawai'i

    Ep. 554: Big Telescope Controversy in Hawai'i

    This week we're live at the American Astronomical Society's 235th meeting in Honolulu, Hawai'i. We learned about new planets, black holes and star formation, but the big issue hanging over the whole conference is the protests and politics over the new Thirty Meter Telescope due for construction on Mauna Kea.

    • 29 min

Customer Reviews

jr1977jr ,

Awesome!

I love astronomy cast and I’ve always wanted to be a astrophysicist so listening to this helps me learn even more 10/10

Sukgd ,

In love ! Perfect for amateur astronomers , space geeks

I'm a space geek myself but do not have a background in physics . This podcast is perfect for me : a wide array of topics , presented in depth , in a very approachable way . The 2 hosts are well spoken , very knowledgeable and a delight to listen to !

Peter Wolske ,

Best Astronomy Podcast in the Universe

I've been listening for almost three years, I found the podcast just before the New Horizons flyby of Pluto, listening to the first episode about Pluto while the flyby was happening was so cool. Ever since I've listened to every podcast and some a few times! Pamela and Fraiser are the best! Canada!

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