Apr 21, 2025
Astronomy Cast Ep. 752: Should We Go to the Moon or Mars Next?
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 16, 2025.
Hosted by: Fraser Cain and Dr. Pamela L. Gay
There is an ongoing debate on where NASA should go next with humans: to the Moon or Mars. (Or maybe an asteroid or one of Mars’ moons). We are on...
Apr 14, 2025
Astronomy Cast Ep. 751: Vacuum Energy
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 7, 2025.
Hosted by: Fraser Cain and Dr. Pamela L. Gay.
Even empty space isn’t empty. It’s filled with the quantum fluctuations of spacetime itself. Which can be measured with famous experiments like the Casimir Effect. There...
Apr 7, 2025
Astronomy Cast Ep. 750: Supernova Early Warning System
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 31, 2025.
Hosted by: Fraser Cain and Dr. Pamela L. Gay
When enormous stars detonate as supernovae they release a burst of neutrinos that can be the first sign of a coming explosion. Now, astronomers have built a...
Mar 31, 2025
Astronomy Cast Ep. 749: Dark Energy Changing Over Time
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 24, 2025.
The Hubble Tension is a vexing problem, with astronomers measuring the expansion of the Universe at different points in its history and getting different results. Errors have mostly been ruled out, which...
Mar 24, 2025
Astronomy Cast Ep. 748: Fast Radio Bursts
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 17, 2025.
For the briefest of moments, some dead stars can flash brighter than their entire galaxy (in Radio light) and then live to do it again and again. It’s time for an update on fast radio bursts, a phenomenon we’ve...