Podcast: Winter is Coming? I Hope Not

Posted on by onespaceman2000

If you missed this podcast three years ago, you will want to catch it now. I listened to it again and enjoyed it just as much as last time.

The Startalk podcast episode it titled “Nuclear Winter with Ann Druyan and Brian Toon” was first broadcast on August 9, 2022, but it was shared again this past July 4th.

Here is a summary of what you will hear:

Are advanced civilizations doomed to destroy themselves? On this episode, Neil deGrasse Tyson and co-host Chuck Nice explore the Cold War, The Drake Equation, and Carl Sagan’s work on the nuclear winter hypothesis with producer of Cosmos and Carl Sagan’s widow Ann Druyan and atmospheric scientist Brian Toon.

Learn about the Future of Life award (details here) and how scientists came up with the nuclear winter hypothesis. How close to annihilation were we? Ann tells us about working with Carl Sagan on Cosmos and his research on this world and others. Find out how Carl Sagan’s research on the climate of Venus inspired work on the runaway greenhouse effect in our own atmosphere. Are scientists always supposed to be dispassionate?

What are the long-term consequences of nuclear war? How did they discover nuclear winter? Find out about volcanic eruptions and how the asteroid that killed the dinosaurs helped spark the idea of a nuclear winter. What happened after the US dropped atomic bombs on Hiroshima and Nagasaki? We learn about what smoke does to the atmosphere and what a post-nuclear world would look like. Why haven’t we seen any other advanced civilizations in the universe? Where are they? We talk about the Drake Equation, the fate of the Earth, and the current state of weapons of mass destruction. How much food would be needed to save up to survive a nuclear winter? Is there anywhere that would be safe?

What was the public’s reaction to nuclear winter? How did it impact geopolitics? Discover how Carl Sagan publicized the hypothesis to US and Russian politicians. Has the global amount of nuclear weapons gone down? We discuss the role of science communication and the concerning instability in the world today. Finally, are we safe?

I don’t want to repeat myself here, so you can read my comments in my earlier post.

Given the continued nasty war between Ukraine and Russia, as well as the recent bombing of nuclear sites in Iran, this episode is still sadly relevant. The discussion about the Reagan administration trying to block scientific inquiry also seems all too familiar today as the Trump administration guts our science programs, including NASA.

I just hope we are in a better place three years from now, both domestically and overseas.

Podcast: The Curious Universe

Posted on by onespaceman2000

If you are looking for new podcast material, you may want to check out NASA’s Curious Universe podcast. It has been around for a while, but it is starting a new series celebrating Earth from April 15 to May 13.

The first episode in the new Earth series is titled “How NASA Sees Our Blue Marble.” In the episode, we hear from Karen St. Germain, the director of NASA’s Earth Science Division. It is a chance to learn about the planet that NASA spends the most time studying.

If you like this series, you can go back and listen to other episodes, such as:

-“Inside the Team That Keeps Hubble Flying” (March 14, 2025)
-“The Sun Series” (March 19 to May 3, 2024)
-“Defending the Planet from Asteroids” (February 21, 2023)
-“The Search For Life: Are We Alone?” (June 21, 2022)

Space Stories: Distant Metalic Mining, Mapping Water on the Moon, and Lunar Cell Phone Service

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the Odin spacecraft approaching an asteroid. (Astroforge)

Here are some recent stories of interest related to the upcoming Intuitive Machines’ launch to the Moon.

—CNN: “A Tiny Spacecraft is Poised to Launch on an Unprecedented Deep-space Mission. The CEO Behind it is ‘Terrified’“

His venture may seem far out, but asteroid mining CEO Matt Gialich has no illusions. The engineer cofounded the bold California startup AstroForge in 2022 with the aim of hunting for precious metals in space, and he is all too aware that success is not guaranteed…The probe is set to lift off aboard a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida on February 26. AstroForge’s spacecraft will ride alongside Athena, a lunar lander developed by the startup Intuitive Machines, until it breaks off on its own.

—Caltech: “NASA’s Lunar Trailblazer is Launching to the Moon’“

NASA’s Lunar Trailblazer mission is led by Caltech’s Bethany Ehlmann, professor of planetary science and the Allen V. C. Davis and Lenabelle Davis Leadership Chair and director of the Keck Institute for Space Studies, and the mission is operated by IPAC at Caltech. The Lunar Trailblazer small satellite, or smallsat, will orbit the Moon to understand the nature of water on the Moon’s surface, providing maps to guide future robotic and human explorers. Prior missions have seen hints of ice and other forms of water that could be used in a variety of ways, from purifying it for human use, to processing it for fuel and breathable oxygen for future human Moon landings.

—Fox News: “NASA Will Test Cell Phone Service on the Moon in Latest Mission’“

NASA and Intuitive Machines are gearing up for a Wednesday evening liftoff, and one of the payloads will test a moon-based cell network. Researchers with Nokia Bell Labs Solutions Research developed the network and say it’s the same tool that we use here on Earth when we pick up our phones and make a call. But they had to make a cell tower much smaller so it could fit in a rocket and land on the moon.

Space Quote: A Close Call in 2032?

Posted on by onespaceman2000
Credit: Image by dlsd cgl from Pixabay.

“We do want to keep an eye on it. We do take it seriously, but we want to put it in perspective … There’s still a very low probability that it would even impact the Earth at all.”

-Statement by Kelly Fast, the acting planetary defense officer for NASA’s Planetary Defense Coordination Office, as quoted by National Pubic Radio. She is referring to asteroid 2024 YR4, which is between 30 feet to about 300 feet in diameter. Scientists believe the asteroid has about a 1.6 percent chance of hitting the Earth in 2032.