Today’s Episode
Mar 18th: What’s the Most Important Wavelength in All Astronomy?
What is 21-cm radiation? What (and who) produces it? What causes it, and what does it tell us about the universe?
Subscribe & Follow
Project Director: Avivah Yamani
Audio Engineer: Richard Drumm
Executive Producer: Pamela L. Gay
Learn more about us on our
Credits and Sponsors page.
We are a community podcast,
bringing you the voices of astronomy & astronomy lovers,
everyday of the year.
More Recent Episodes
Feb 11th: Losing the Night Sky
Light pollution has been impacting our view of the heavens for many years and @GlobeatNight data shows the night sky is brightening more than previously thought based on satellite measurements.
Feb 10th: Is There A Shadow Biosphere? Searching For Life On Earth That Isn’t Related To Us
Why does life rely on water? Couldn’t there be lifeforms which are completely different from life on Earth? Isn’t that the textbook definition of alien?
Feb 9th: Quasar’s Light Echoes After 6.73 Years
Astronomers using the 1.2-meter Whipple Observatory to follow the brightness of a lensed galaxy for 14.5 years have calculated that the time delay between light arriving along the shortest and farthest paths is 6.73 years.
Feb 8th: AI Reveals Black Holes and Galaxies Grow up Together
Astronomers recently found that the growth of a galaxy and the growth of the supermassive black hole, or SMBH, at its center have a lot in common.
Feb 7th: What are the Blue Stragglers?
What are blue straggler stars? How were they first discovered? What do they tell us about star clusters and the evolution of stars? I discuss these questions and more in today’s Ask a Spaceman!
Feb 6th: The Crisis In Cosmology
Astronomers have made extremely accurate measurements of the expansion rate of the Universe and come up with different results. And the error bars for the observations don’t overlap, so there’s something strange going on. What’s the answer and how can the Crisis in Cosmology be resolved?