Episodes
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Chris and I decided to find out when humans realized that meteorites came from beyond Earth: it could be a lot older than it was once thought! Egyptologist Dr Victoria Almansa-Villatoro joins us to discuss meteorite artifacts and intriguing hieroglyphs from Ancient Egypt.
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We are talking about ancient aliens. (No, not the racist conspiracy theory!) We look into the concept of extraterrestrials over history and how it originated. Who were the first recorded people who pondered about life outside Earth?
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Missing episodes?
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In this episode, we tackle the classic concept of sound in space, what can we measure, and why it is important that some sound waves move through the cosmos.
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Our position inside the Milky Way doesn't give us an advantageous view of our galaxy. But that doesn't mean we haven't found a way around it. Joined by Dr GyuChul Myeong, we explore how we make sense of the Milky Way and its past collision with the Gaia-Sausage galaxy.
If you are interested in my book, here is a link to the crowdfunding page.
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In the last episode, we looked at how stars end up dead. So Chris has an important follow-up: can you find a way to heal and save a dying star?
#InvisibleRainbows
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Our Sun and many other stars will become larger later in life. But is this a condition common to all stars? Guest questioner Francis wonders about the future of stars and their ultimate demise!
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In this episode, we tackle the peculiar carbonado diamond, a black diamond that looks very different from the glittering gems we might be more familiar with. And we will discover that its origin might be out of this world!
Carbonado Diamond going on auction
Invisible Rainbows
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Planets in sci-fi are often portrayed as having a single climate, but how truthful is that idea? This audience question gets the full treatment from Alfredo & Chris as they deal with the tatooines, hoths, risas, synnaxes of the real universe!
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Join us in this unplanned video & audio diary as we go after the April 8 total solar eclipse in Mexico. For the video version: https://youtu.be/SR00jigmgR0?si=LKLYaoqvq_YaUo6V For #InvisibleRainbows: https://unbound.com/books/invisible-rainbows
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The Astroholic Explains Xmas Special is inspired by Italo Calvino's Cosmicomics on the 100th anniversary of the author's birth. Join us for an imaginative tale, not fantasy nor sci-fi, but one based on science facts: the formation of elements in stars and how they spread across the universe. ✨
And if you are interested in my book, here is a link to the crowdfunding.
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I'm writing a book all about the astronomy we do with the light we cannot see with our own eyes. It's called Invisible Rainbows and features astronomers from all around the world.
If you are interested in finding out more and maybe pledge for a copy, click on this link.
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We don't know and will likely never know what happened before the Big Bang, but Chris is curious about it, so we take a journey in the land before time and space!
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Conspiracy theories and misconceptions about the Moon extend far beyond the Moon-landing! In this episode, we take a trip 4.5 billion years into the past to witness how Luna came to be.
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This episode starts with a whimsical question of what could we grow on Mars that we could use in a cocktail or mocktail, but we quickly expand on some important topics like what future space travelers might need in order to survive and ways to make agriculture on Earth more sustainable. And it all starts with a delicious cocktail designed by a team at NASA for The Astroholic Explains (here is the recipe).
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When we think of asteroid impacts, we often just picture Chicxulub and the mass extinction of three-quarters of the plant and animal species on Earth, 66 million years ago. But asteroid impacts can be less impactful to life, like the Popigai and Chesapeake impactors - not as big as Chicxulub but still big enough to create craters of over 80 kilometers across, way back around 35 million years ago. Cosmic material could even actually help life bloom.
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We talk about everything, everywhere all at once as we enter the multiverse! In this episode, we describe some ideas that scientists have proposed to explain things we see in the universe with no explanation, or simply to indulge in the idea of parallel dimensions.
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In this episode, we focus on alternative energy approaches for future missions to Mars. NASA Ames' Dr Victoria Hartwick has recently published research about utilizing wind power on Mars, showing that it is not all solar or nuclear when it comes to exploring other worlds in the Solar System.
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In this episode, we talk all about JUICE, the European Space Agency mission that launches today April 13 to study the Icy moons of Jupiter (Europa, Ganymede, and Callisto) and the Jovian system - and also why I am in Germany to make a mocktail!
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