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11:3563K views · 3d ago · 11:35
Geology can’t tell us the future, but it can tell us a whole lot about the past. And when it comes to climate change on Earth, there really is nothing new under the sun. In this episode, we’ll talk about one of Earth’s hottest periods – the Paleo-Eocene Thermal Maximum – and what it can tell us about our hot, hot future.
13:3578K views · 5d ago · 13:35
Was the 2020 election stolen? Well, no. But a lot of people seemed to think it was. So, how hard is it, really, to commit election fraud? In this episode, we dig into how our voting system really works, and how we keep our elections secure.
10:2288K views · 1w ago · 10:22
Minerals—they’re in our homes and our smartphones. But can we meet the demand for them without hurting the places and communities they come from? In this episode of Crash Course Geology, we’ll learn about mining, the critical minerals that power our technologies, and efforts to meet our mineral needs more responsibly.
14:32127K views · 1w ago · 14:32
Is the Electoral College broken? More and more people in the U.S. are voicing dissatisfaction with the way we elect presidents. In this episode, we’ll unpack how the Electoral College works, why some people think it doesn’t work, and possible solutions to make our elections work better.
10:3194K views · 2w ago · 10:31
You’ve probably heard about fossil fuels before – the good, the bad, and the super, super ugly. But what you might not know is that fossil fuels only exist because of the power of the Earth. And that same power can also provide us with a different type of energy that might be key to a more sustainable future. In this episode, we’ll dig deep and talk about fossil fuels and geothermal energy.
Topics: What are fossil fuels and how do they form? · The problems with fossil fuels · Geothermal energy · Review and Credits
14:41143K views · 2w ago · 14:41
Why don’t more people in the U.S. vote? In 2024, 90 million U.S. voters made a choice on election day...the choice not to vote. The U.S. has some of the lowest voter turnout of any developed democracy. To find the answer, we have to take a hard look at ourselves, but also at the systems that make us want to vote, or stay home.
14:31123K views · 3w ago · 14:31
Where do campaigns get all their money, and where does it go? In this episode of Crash Course Big Questions on U.S. Government, we’ll dig into the limits of campaign financing and the rising influence of super PACs, dark money, and independent spending. We’ll also look at why special interest groups, corporations, and individual voters donate to campaigns, and what that money is actually used for.
10:33104K views · 1mo ago · 10:33
How worried should we be about giant asteroid impacts? In this episode of Crash Course Geology, we’ll learn how to tell an asteroid from a meteorite, what happens when space rocks approach the Earth, and how scientists track potential threats before they reach us.
13:14157K views · 1mo ago · 13:14
Does the U.S. need a competitive third party? And would anyone even vote for one? In this episode of Crash Course Big Questions on U.S. Government we’ll investigate why it feels like the U.S. is trapped in a two-party system. The answer comes down to two things – our systems and ourselves.
10:47102K views · 1mo ago · 10:47
What can gouge out lakes, carve through mountains, and make weird marks in the ground that look /exactly/ like yeti claws? Well, not a yeti, probably. In this episode, we’ll learn about glaciers, the huge frozen beasts that have shaped our world – and might soon be leaving it.
12:13153K views · 1mo ago · 12:13
How did U.S. politics get so divisive? In this episode of Crash Course Big Questions: U.S. Government and Politics, we’ll pull back the curtain on how Republican and Democrat became synonymous with “conservative” and “liberal,” and why politics today has gotten so polarized and personal.
8:21:26230K views · 1mo ago · 8:21:26
In Crash Course Marathons, we’re revisiting the series you love, in long-form videos that cover entire subjects from back to front. Crash Course Astronomy covers outer space, from the stars and nearby planets we can see with the naked eye, to the mysterious dark matter no one can see at all. With detours to exoplanets, deep time, and even our own planet Earth, we’ll explore the universe — what we know, how we know it, and what’s still left to discover.
3:30117K views · 1mo ago · 3:30
Welcome to Crash Course Big Questions on U.S Government! In this series, we’ll be exploring big questions and misconceptions about how our government operates, from partisan divisions and Congressional gridlock to stolen elections and the limits of presidential power.
10:20122K views · 1mo ago · 10:20
Everybody dies, but few fossilize. In this episode of Crash Course Geology, we’ll learn how fossils form and why they’re so rare. Although very few living things ever become fossils, those that /do/ help us understand Earth’s history and how life came to be as it is today.
11:16144K views · 1mo ago · 11:16
What do iron deposits, fossils, and radioactive meteorites have in common? They’re all keeping records of our geologic history, the unimaginably long period of time that our Earth has been swinging around the sun. In this episode, we’ll look back into geologic time, discovering what we know, how we know it, and what it all means.
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