Fun to Know! A Collection of Space Trivia [Rec]

Feel the scale of the universe

A video that lets you feel the scale of the universe

“Space is vast.” That much is obvious—but just how vast is it, really? If you compare yourself to Earth, it goes without saying that Earth is unimaginably large.

The Milky Way galaxy that Earth resides in is said to contain as many as 400 billion planets.

And in recent years, research has suggested there are 2 trillion galaxies beyond the Milky Way.

The numbers are so enormous they’re hard to grasp.

If you use the software “Mitaka,” distributed by the National Astronomical Observatory of Japan, you can virtually experience the scale and structure of the universe—so definitely give it a try.

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Araki Jakkan

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Why can we see the Milky Way?

Why does the Milky Way look like a river? #space #science #geometry #trivia #MilkyWay

In Japan, the Milky Way is famous as the place where the Tanabata lovers, Orihime and Hikoboshi, can meet.

In astronomy, the true identity of the Milky Way is the view from Earth of our enormous Galactic system—the galaxy that contains the solar system, which in turn includes the Sun, Earth, and other celestial bodies.

Since Earth is inside the Milky Way, we see it from the inside, which is why it appears as that river-like band in the sky.

There isn’t a single celestial object called the Milky Way; rather, it’s a galaxy made up of countless objects that looks like a river to us.

There’s something quite romantic about that, isn’t there?

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Yuuki

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Alien Sighting

What is the truth behind alien sightings around the world? The real story of mysterious sightings continuing since ancient times and the shocking facts hidden from Earthlings [Urban Legend]

How far does the universe stretch? As people often say, it wouldn’t be strange if there were life-forms other than humans—in other words, aliens.

With that in mind, I think looking into alien sightings could deepen our understanding of space! There are accounts of UFOs found in old Japanese texts, and reports from other countries that share visual similarities.

You might even gain knowledge on a global scale—if not cosmic.

Maybe it’s a bit too soon to dismiss it all as mere occult stuff!

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Araki Jakkan

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Earth-like planet

Six recently discovered planets that are strikingly similar to Earth.

“If we were to live on a planet other than Earth, which would be best…?” That kind of large-scale, spacefaring migration is a topic often featured from fiction to real space science.

But if we were truly to relocate, which planet would be suitable? One candidate is Kepler-438b.

This planet is said to be just under 90% similar to Earth, and its favorable environment has raised hopes that life might exist there! There are many other planets being considered as candidates as well.

Take a look at some books and see if you can find your favorite!

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Yuuki

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The Secret of Mars

About the secrets of Mars

Mars often appears as a setting in novels, manga, and films.

It’s a planet with a reddish appearance that is regularly investigated because there might be water.

How about learning some trivia about Mars? If you look into questions like “Why do people say there might be water?” and “Why is its rotation period—its day—almost the same as Earth’s?”, it may start to feel like a familiar world.

In fact, in movies it’s often portrayed as a potential destination for human colonization.

Once you learn the reasons, that portrayal will make sense.

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Araki Jakkan

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