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Mars Facts and History!
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From its history of discovery, to its composition on the ground and in the atmosphere, to what it might mean to Earth in the very near future! Join me as I show you some of the history and facts about Mars!
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9. How We Found Mars
If astronomy has taught us anything, it's that the earliest civilizations that were on Earth were incredibly advanced in not just looking at the stars above, but understanding what the various things in the night sky were and naming them to help them understand more. And that includes finding Mars and understanding what it was.
Some of the early records of Mars' observation date back to the era of the ancient Egyptian astronomers in the 2nd millennium BCE. Chinese records about the motions of Mars appeared before the founding of the Zhou Dynasty (1045 BCE). Detailed observations of the position of Mars were made by Babylonian astronomers who developed arithmetic techniques to predict the future position of the planet.
So just in the finding of Mars, you had a handful of civilizations not just finding Mars, but slowly learning more about it LONG before the modern age of astronomy ever came about. Which just makes it all the more impressive that they were able to learn so much.
In terms of the modern age, the first telescopic observation of Mars was by Galileo Galilei in 1610. Within a century, astronomers discovered distinct albedo features on the planet, including the dark patch Syrtis Major Planum and polar ice caps. They were able to determine the planet's rotation period and axial tilt. These observations were primarily made during the time intervals when the planet was located in opposition to the Sun, at which points Mars made its closest approaches to the Earth Better telescopes developed early in the 19th century allowed permanent Martian albedo features to be mapped in detail. The first crude map of Mars was published in 1840, followed by more refined maps from 1877 onward. When astronomers mistakenly thought they had detected the spectroscopic signature of water in the Martian atmosphere, the idea of life on Mars became popularized among the public. Percival Lowell believed he could see a network of artificial canals on Mars. These linear features later proved to be an optical illusion, and the atmosphere was found to be too thin to support an Earth-like environment. But we'll get to that later.
Still, just in the discovery of Mars and its most basic elements camp across thousands of years of discovery and investigation, and to this day we're still learning a lot about Mars.
8. Orbits and Rotations
If you somehow haven't heard, the world is trying to get humanity onto Mars so that colonies can start to be formed. But to truly help people adapt to that notion, certain variables need to be understood, like how the orbits of Mars works, and the seasons that the planet may or may not have.
First and foremost, a year on Mars is almost double that on Earth. Earth's is 365 days, and Mars' is 687 days. This is due to the fact that Mars is much farther away from the sun than Earth is, and thus has farther to go.
Now, on the flipside though, the rotation of Mars is just barely slower than Earth's. So instead of a 24 hour day, we actually have a 25 hour day more or less (the actual number is 24.62). That's not too bad of a twist, right?
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Credits: Ron Miller
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/Esa
Credits: Flickr
Credits: WellCome collection
Video Chapters:
00:00 Introduction
00:21 How We Found Mars
03:20 Orbits and Rotations
05:09 Water On Mars
06:59 Atmosphere
08:12 Soil
09:45 Pop Culture
11:18 Moons
12:14 Terraforming
13:32 Life on Mars
#insanecuriosity #marsfacts #thesolarsystem
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-------------------------------------------------------------------------------------------
9. How We Found Mars
If astronomy has taught us anything, it's that the earliest civilizations that were on Earth were incredibly advanced in not just looking at the stars above, but understanding what the various things in the night sky were and naming them to help them understand more. And that includes finding Mars and understanding what it was.
Some of the early records of Mars' observation date back to the era of the ancient Egyptian astronomers in the 2nd millennium BCE. Chinese records about the motions of Mars appeared before the founding of the Zhou Dynasty (1045 BCE). Detailed observations of the position of Mars were made by Babylonian astronomers who developed arithmetic techniques to predict the future position of the planet.
So just in the finding of Mars, you had a handful of civilizations not just finding Mars, but slowly learning more about it LONG before the modern age of astronomy ever came about. Which just makes it all the more impressive that they were able to learn so much.
In terms of the modern age, the first telescopic observation of Mars was by Galileo Galilei in 1610. Within a century, astronomers discovered distinct albedo features on the planet, including the dark patch Syrtis Major Planum and polar ice caps. They were able to determine the planet's rotation period and axial tilt. These observations were primarily made during the time intervals when the planet was located in opposition to the Sun, at which points Mars made its closest approaches to the Earth Better telescopes developed early in the 19th century allowed permanent Martian albedo features to be mapped in detail. The first crude map of Mars was published in 1840, followed by more refined maps from 1877 onward. When astronomers mistakenly thought they had detected the spectroscopic signature of water in the Martian atmosphere, the idea of life on Mars became popularized among the public. Percival Lowell believed he could see a network of artificial canals on Mars. These linear features later proved to be an optical illusion, and the atmosphere was found to be too thin to support an Earth-like environment. But we'll get to that later.
Still, just in the discovery of Mars and its most basic elements camp across thousands of years of discovery and investigation, and to this day we're still learning a lot about Mars.
8. Orbits and Rotations
If you somehow haven't heard, the world is trying to get humanity onto Mars so that colonies can start to be formed. But to truly help people adapt to that notion, certain variables need to be understood, like how the orbits of Mars works, and the seasons that the planet may or may not have.
First and foremost, a year on Mars is almost double that on Earth. Earth's is 365 days, and Mars' is 687 days. This is due to the fact that Mars is much farther away from the sun than Earth is, and thus has farther to go.
Now, on the flipside though, the rotation of Mars is just barely slower than Earth's. So instead of a 24 hour day, we actually have a 25 hour day more or less (the actual number is 24.62). That's not too bad of a twist, right?
-------------------------------------------------------------------------------------------
Credits: Ron Miller
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/Esa
Credits: Flickr
Credits: WellCome collection
Video Chapters:
00:00 Introduction
00:21 How We Found Mars
03:20 Orbits and Rotations
05:09 Water On Mars
06:59 Atmosphere
08:12 Soil
09:45 Pop Culture
11:18 Moons
12:14 Terraforming
13:32 Life on Mars
#insanecuriosity #marsfacts #thesolarsystem
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