Ep. 717: Understanding the Ages of Distant Cosmic Objects| Listen on Anghami

Oct 6

Ep. 766: How Spacecraft End

Astronomy Cast Ep. 766: How Spacecraft End By Fraser Cain & Dr. Pamela Gay End-of-Life Planning for Your Spacecraft! Streamed live October 1, 2025. Your spacecraft has reached the end of its mission. You’ve done everything you can to keep it operational, but now it’s time to say ... Show More

30m 28s

Sep 29

Ep. 765: Rockets vs The Environment

Astronomy Cast Ep. 765: Rockets vs The Environment By Fraser Cain & Dr. Pamela Gay Streamed live on Sep 22, 2025. We don’t launch a lot of rockets every year, so their impact on the environment is minimal compared to other forms of transportation. But that number is steadily incr ... Show More

35m 18s

Sep 22

Ep. 764: Cleared For Launch!

Astronomy Cast Ep. 764: Cleared For Launch! By Fraser Cain & Dr. Pamela Gay Streamed live September 17, 2025. This week, we look at the process behind rockets getting licensed to launch, and everyone around the pad getting notified to stay away as T-0 approaches. (Can you say "er ... Show More

33m 3s

Aug 2023

Mapping the universe

A rocket launch, super-massive black holes and ghost particles! This past week’s scientific findings are testament to how hard-at-work cosmologists and physicists have been seeking out the fundamental building blocks of our universe and the rules that govern it. Professor of Cosm ... Show More

35m 18s

Feb 2022

Cosmic Queries – Quantum Queries with Hakeem Oluseyi

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. NOTE: StarTalk+ Patrons can watch or li ... Show More

50m 34s

Jul 2023

S26E85: Age of the Universe Reassessed // Astonishing Saturn // Growing Plants on the Moon

SpaceTime Series 26 Episode 85 *A retake on the age of the universe A new study suggests that the universe is actually 26.7 billion years old – that’s nearly twice as old as the 13.8-billion-year age previously believed. *New image from Webb reveals astonishing Saturn and its rin ... Show More

31m 48s

Jun 2023

42: A (brief) History of Astronomy

Dr Becky and Izzie dust-down the Supermassive Tardis to explore the history of astronomy. From fossilised baboon bones and baby lamas to Einstein and black holes, the Supermassive team discovers how we came to understand the Universe the way we do today. Editor Richard talks to a ... Show More

48m 41s

Aug 2021

Cosmic Queries – Grab Bag – Cosmology Crisis??? With Paul Mecurio

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. NOTE: StarTalk+ Patrons can watch or listen to this entire episod ... Show More

54m 16s

Feb 2024

#390: Wormholes, Black Holes, and Blue Giants: Your Space Questions Answered

Are you ready to uncover the mind-bending secrets of our universe? Join us as we reveal the unexpected truth about the formation of habitable planets and the potential for multiple habitable worlds within a single solar system. You won't believe how many habitable planets could e ... Show More

53m 2s

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

Nov 2022

A distant planet’s atmosphere

Nasa's JWST space telescope has unpicked the chemical contents and state of the atmosphere of planet WASP-39b 700 light years away. Astronomer Hannah Wakeford explains. Meteorologist Laura Wilcox warns that atmospheric haze over China and South Asia is masking some of the effects ... Show More

28m 4s

Ep. 717: Understanding the Ages of Dista...