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Astronomy Cast

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Feb 16, 2026

Astronomy Cast Ep. 782: Luminous Fast Blue Optical Transients

By Fraser Cain & Dr. Pamela Gay

Streamed live on Feb 13, 2026.

Modern astronomy has found that the Universe can surprise us. Here’s one which astronomers have called Luminous Fast Blue Optical Transients. They’re kinda like supernovas, they’re kind of...


Feb 9, 2026

Astronomy Cast Ep. 781: Awakening Black Holes

By Fraser Cain & Dr. Pamela Gay

Streamed live on Feb 2, 2026.

One long standing mystery in astronomy were the quasars. Incomprehensible energy blasting out of a point-like source, billions of light years away. We now know these are actively feeding supermassive black holes,...


Feb 2, 2026

Astronomy Cast Ep. 780: When Asteroids & Comets Attack!

By Fraser Cain & Dr. Pamela Gay

Streamed live on Jan 26, 2026.

We live in a cosmic shooting gallery. It’s not a matter of “if” but “when”! Dinosaurs, blah, blah, blah. You know the drill. But seriously, folks, it’s raining rocks & ice out there! How...


Jan 19, 2026

Astronomy Cast Ep. 779: Milankovitch Cycles

By Fraser Cain & Dr. Pamela Gay

Streamed live on Jan 12, 2026.

Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know the terrible truth! And that there are cycles that slowly shift over tens...


Jan 12, 2026

Astronomy Cast Ep. 778: Dyson Swarms

By Fraser Cain & Dr. Pamela Gay

Streamed live on Jan 5, 2026.

Freeman Dyson asked a fascinating question. What would it look like if a civilization was using all the energy coming from their star? And what form would this take? This introduced the concept of a Dyson Sphere, or more...