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.

Russian Delivery Heading to ISS

Posted on by onespaceman2000
Image (Credit): Launch of the Progress 92 cargo craft from the Baikonur Cosmodrome in Kazakhstan. (NASA)

Russia launched another cargo mission to the International Space Station ((SS) yesterday. A Soyuz rocket launched the Progress 92 spacecraft towards the space station at 3:32 pm ET from the Baikonur Cosmodrome in Kazakhstan. The spacecraft will dock with the ISS tomorrow afternoon, ensuring critical supplies are available to the crew member.

In the meantime, you can watch a Fourth of July message from NASA’s Expedition 73 Flight Engineers Anne McClain, Nichole Ayers, and Jonny Kim.

Happy Fourth of July to everyone.

A Day in Astronomy: Beginnings and Ends

Posted on by onespaceman2000
Image (Credit): ValentinaTereshkova just before boarding her Vostok 6 capsule. (NASA)

On this day in 1963, Valentina Vladimirovna Tereshkova from the USSR became the first woman in space. She flew solo on the Vostok 6 for three days. It was her first and last time in space. Her importance as a symbol for women and the USSR meant she would never fly again lest something happen to her.

She was quoted as saying:

They forbade me from flying, despite all my protests and arguments. After being once in space, I was desperately keen to go back there. But it didn’t happen.

On this same day in 1977, German-American Wernher von Braun passed away. As the chief designer of the Saturn rockets that took men to the Moon, he was to see all of the Apollo missions before his death.

He is also quoted as saying:

I’m convinced that before the year 2000 is over, the first child will have been born on the moon.

It is unlikely he would have believed that it would be another 50 years before we found our way back to the Moon.

Image (Credit): Braun standing next to the first stage of the Saturn V booster he helped design. (NASA)

Star Wars: Another Political Take on the Empire

Posted on by onespaceman2000
Image(Credit): Senator Amidala from Star Wars: Revenge of the Sith. (Starwars.com)

While the libertarians at Reason magazine have their view of the imperial story-line in the Star Wars television series Andor, the liberal folks at Mother Jones magazine have a whole different take on the Star Wars universe.

In an article last month titled “How Star Wars Reveals Conservatives’ Authoritarian Fantasies,” we read about how some Republicans are showing support for the brutality of the Dark Side as illustrated in Andor. For instance, it quotes former Mitch McConnell adviser and GOP operative Scott Jennings defending the Empire’s elimination of Alderaan in the original Star Wars movie, stating:

I think some could argue that it was warranted, given their rebellious activities. I mean, he defended the Empire against unelected hippies and violent protesters.

You can see the entire Mother Jone’s YouTube clip here.

This is not an encouraging thought at this point in history. In an interview, George Lucas himself said the rebel alliance came from his reading of history and his understanding of the Viet Cong battle against the American empire. He saw the rebels as anti-authoritarian. He also thought of the American rebels as they fought Great Britain, the largest empire in the world.

Supporting the Evil Empire is more or less the same as voicing support for the wannabee Russian empire as it attacks democratic Ukraine. I think we all can do much better than to stoop that low.

Either that, or soon we will also be quoting the line “So this is how liberty dies.”

Ed Helms and Lunar Nukes

Posted on by onespaceman2000
Credit: Grand Central Publishing.

Actor Ed Helms is making his rounds to sell his book Snafu: The Definitive Guide to History’s Greatest Screwups.

One of the stories he tells is about the US “planting nukes on the moon.” Is this true?

Yes, it was a top secret effort called Project A119, with the goal of exploding a hydrogen bomb on the Moon. And believe it or not, Carl Sagan was involved in the calculations related to this zany idea.

This was in the late 1950s during the Cold War when the US and Soviet Union were doing everything they could to trump one another. It also was right after Sputnik, when the US felt it was losing the space race. In this case, the US would make a clear demonstration of its power through this distant explosion.

Fortunately, the US decided to take a better route by going into orbit and eventually to the Moon. If we had blown up the Moon, Carl Sagan would have been remembered in a very different way today – less as the educator, and more as Dr. Strangelove.

Just never underestimate the ability of the government to go down some dark roads. We needed guardrails then like we need them now.

You can read more about it in this History.com story.