Oct 14, 2019
542: Weird Issues: The Age of the Universe
Astronomy Cast 542: Weird Issues: The Age of the Universe
by Fraser Cain & Dr. Pamela Gay
Our series on Universe weirdness continues, this time we learn how astronomers are struggling to make sense of the age of...
Oct 7, 2019
541: Weird Issues: Expansion Rate of the Universe
Astronomy Cast 541: Weird Issues: Expansion Rate of the Universe
by Fraser Cain & Dr. Pamela Gay
Just when the Universe was starting to make sense, the cosmos throws a curveball at us. Astronomers have been trying to accurately measure the expansion rate of the Universe...
Sep 30, 2019
540: Weird Issues: How Do (or Don't) Planets Form?
Astronomy Cast 540: Weird Issues: How Do (or Don't) Planets Form?
by Fraser Cain & Dr. Pamela Gay
As astronomers started to discover planets orbiting other stars, they immediately realized that their expectations would need to be tossed out. Hot jupiters? Pulsars with...
Sep 23, 2019
539: Weird Issues: Why We Don't Know the Age of Saturn's Rings
Astronomy Cast 539: Weird Issues: Why We Don't Know the Age of Saturn's Rings
by Fraser Cain & Dr. Pamela Gay
How old are Saturn's rings? They could be brand new, or they could be as ancient as the Solar System itself. Planetary scientists thought they knew...
Sep 16, 2019
538: Asteroids: Rubble piles of the Solar System
Astronomy Cast 538: Asteroids: Rubble piles of the Solar System
by Fraser Cain & Dr. Pamela Gay
Thanks to all the work from Hayabusa 2 and OSIRIS-REx, astronomers are getting a much better look at the smaller asteroids in the Solar System. It turns out, they're piles of ...