Astronomy Cast Ep. 717: Understanding the Ages of Distant Cosmic Objects by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 22, 2024. How old is that star? That planet? That nebula? Figuring out the ages of astronomical objects is surprisingly challenging. Fortunately, astronomers have developed a series of techniques they can use to work out the ages of s ... Show More
Feb 2022
Cosmic Queries – Quantum Queries with Hakeem Oluseyi
<p>Do we really know the age of the universe? On this episode, Neil deGrasse Tyson and comic co-host Paul Mecurio answer astrophysics questions about the big bang, gravitational waves, and the speed of light with astrophysicist Hakeem Oluseyi. </p><p>NOTE: StarTalk+ Patrons can w ... Show More
50m 34s
Aug 2021
Cosmic Queries – Grab Bag – Cosmology Crisis??? With Paul Mecurio
<p>How do we know the age of stars? On this episode, Neil deGrasse Tyson and comic co-host Paul Mecurio answer fan questions about stars, black hole collisions, the speed of light, and the present crisis in cosmology. </p>
<p>NOTE: StarTalk+ Patrons can watch or listen to this en ... Show More
54m 16s
Aug 2016
Signs of life on planets, Royal Society Book Prize, Queen Bee control, Galactic Prom 29
What should we be looking for when searching for life on other planets beyond our solar system? Scientists urgently need to come to a consensus on this as a new suite of telescopes soon begins detecting. The space agency NASA has put together a virtual institute called The Nexus ... Show More
27m 49s