Ep. 745: How We Know If Asteroids Will Attack

Ep. 745: How We Know If Asteroids Will Attack

Astronomy Cast Ep. 745: How We Know If Asteroids Will Attack By Fraser Cain & Dr. Pamela Gay Streamed live Feb 20, 2025. I'm sure you've heard the news, asteroid 2024 YR4 has a tiny chance of hitting Earth in 2032. How do astronomers discover these dangerous asteroids, measure their future impact risk and track the changes over time? When should we panic? New asteroids are found every day, and every day we learn that those asteroids don't have any murderous intentions. But how do we learn that? In this episode we dig into asteroid orbital determination. Hosted by: Fraser Cain and Dr. Pamela L. Gay SUPPORTED BY YOU This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. Thanks to: Andrew Poelstra, BogieNet, Brian Cagle, David, David Truog, Ed, Gerhard, Schwarzer, Jeanette Wink, Siggi Kemmler, Stephen Veit

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Ep. 696: Mission Roll Call Part 5: The Science at Mars

Ep. 696: Mission Roll Call Part 5: The Science at Mars

Astronomy Cast Ep. 696: Mission Roll Call Part 5: The Science at Mars by Fraser Cain & Dr. Pamela Gay Streamed live on Oct 30, 2023. Another week, another review of space missions in the Solar System. Today we set our sights on the red planet. What are all the active missions at Mars today? This video was made possible by the following Patreon members: Stephen Veit Jordan Young Jeanette Wink Andrew Poelstra Brian Cagle David Truog BogieNet Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela

6 Nov 202340min

Ep. 695: Mission Roll Call Part 4: Lunar Exploration

Ep. 695: Mission Roll Call Part 4: Lunar Exploration

Astronomy Cast Ep. 695: Mission Roll Call Part 4: Lunar Exploration by Fraser Cain & Dr. Pamela Gay Streamed live on Oct 23, 2023. Our journey through missions continues, this time we focus on the Moon. There are many nations on the Moon, near the Moon, around the Moon, traveling to the Moon. It's a lot. We'll talk about it today. This video was made possible by the following Patreon members: Stephen Veit Jordan Young Jeanette Wink Andrew Poelstra Brian Cagle David Truog BogieNet Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela

30 Okt 202335min

Ep. 694: Mission Roll Call Part 3: Sun, Mercury, and Venus

Ep. 694: Mission Roll Call Part 3: Sun, Mercury, and Venus

Astronomy Cast Ep. 694: Mission Roll Call Part 3: Sun, Mercury, and Venus by Fraser Cain & Dr. Pamela Gay Streamed live on Oct 16, 2023. Our journey through space missions continues. Now we move away from the Earth to the rest of the solar system. What's out there orbiting, roving and flying on other worlds and in interplanetary space. Today we look inward and we'll talk about the missions studying the Sun, Mercury and Venus. Thank you to all of our patrons who allow us to do this! This week I'd like to thank Jeremy Kerwin, Stuart Mills, Slug!, Harold Bardenhogan, Matthew Horstman, Kimberly Reich, Georgie Ianov, Scott Bieber, Jim Schooler. Marco Yarasi, David Gates, Alex Cohen, Justin Proctor, Claudia Mastriani, Scott Cohen, Disastrina, Kinsaya Pianflinko, Mathias Hayden, The Big Squish Squash!, Tim Garish, Gregory Singleton, Tim McMackin, Jeff Wilson Cooper, Paul D Disney, Benjamin Mueller, Ninja Nick, Kenneth Ryan, Eran Segev, Scott Briggs and Bruce Amazine. Thank you all so much!

23 Okt 202333min

Ep. 693: Mission Roll Call Part 2: Looking Outward from Earth

Ep. 693: Mission Roll Call Part 2: Looking Outward from Earth

Astronomy Cast Episode 693: Mission Roll Call, Part 2: Looking Outward from Earth by Fraser Cain & Dr. Pamela Gay Streamed live on Oct 9, 2023. Last week, we brought you up to speed on the spacecraft which are helping to study Earth from above. Many of our missions are in Earth orbit but looking outward to study the Universe. Today, we'll talk about the missions close to home, helping us understand our place in the cosmos. This video was made possible by the following Patreon members: Stephen Veit Jordan Young Jeanette Wink Andrew Poelstra Brian Cagle David Truog BogieNet Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela

16 Okt 202329min

Ep. 692: Mission Roll Call Part 1: Earth Orbit

Ep. 692: Mission Roll Call Part 1: Earth Orbit

Astronomy Cast Ep. 692: Mission Roll Call Part 1: Earth Orbit by Fraser Cain & Dr. Pamela Gay It's time for another series! This time we're gonna look at the missions that're currently in place across the solar system. Today we'll start with the key missions here on Earth, studying the planet from above and looking out into the Universe.

9 Okt 202329min

Ep. 691: Jupiter's Changing Red Spot

Ep. 691: Jupiter's Changing Red Spot

Astronomy Cast Ep. 691: Jupiter's Changing Red Spot by Fraser Cain & Dr. Pamela Gay Streamed live on Sep 25, 2023. Jupiter's Great Red Spot is one of its most iconic features. First seen hundreds of years ago. Although it's certainly long lasting, it's been changing in size over the last few decades. Shrinking, changing in color. Is it fading away? And what can the changes tell us about storms on giant planets?

2 Okt 202329min

Ep. 690: Climate on Mars - From Ice Caps to Dust Storms

Ep. 690: Climate on Mars - From Ice Caps to Dust Storms

Astronomy Cast Ep. 690: Climate on Mars - From Ice Caps to Dust Storms by Fraser Cain & Dr. Pamela Gay Streamed live on Sep 18, 2023. We've looked at Earth's changing climate, now let's see what it's like for another world: Mars. Much looks familiar, but some of it is totally alien, from ice caps of frozen carbon dioxide to planetary dust storms that can obscure the entire world from view. This video was made possible by the following Patreon members: Stephen Veit Jordan Young Jeanette Wink Andrew Poelstra Brian Cagle David Truog BogieNet Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela

25 Sep 202329min

Ep. 689 - Our Warming World: 20 Years of Climate Science

Ep. 689 - Our Warming World: 20 Years of Climate Science

Astronomy Cast Ep. 689 - Our Warming World: 20 Years of Climate Science by Fraser Cain & Dr. Pamela Gay Streamed live on Sep 11, 2023. It's official! June and July were the warmest we've seen since records began over a century ago. Fires are rampant across Canada, and we're seeing record droughts around the world. Today we're going to look at 20 years of climate science, how well does reality match up with the predictions. This video was made possible by the following Patreon members: Stephen Veit Jordan Young Jeanette Wink Andrew Poelstra Brian Cagle David Truog BogieNet Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela

18 Sep 202337min

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