Stars Are Everywhere, So Why Is the Sky Still Dark?

[erronis]

https://scitechdaily.com/stars-are-everywhere-so-why-is-the-sky-still-dark/

Why is space so dark despite all of the stars in the universe?

The question of why space is dark, even though it is filled with stars, has puzzled people for centuries. In fact, this question has a special name in astronomy: Olbers’ paradox.

Astronomers estimate there are around 200 billion trillion stars in the observable universe. Many of these stars shine as brightly — or even more brightly — than our own sun. So, why isn’t the night sky ablaze with light?

As an astronomer who studies stars and planets, including those beyond our solar system, I explore questions like this to understand the cosmos. The answer to why space is so dark lies in more than just the vast distances between stars and Earth.

At first glance, you might think the darkness is due to the stars being incredibly far away. While it’s true that distance makes stars appear dimmer — a star 10 times farther away looks 100 times dimmer — this explanation doesn’t fully solve the mystery. There’s more to uncover.

Much more at link.

[SCantiGOP]

1. Interesting read

Something I didn’t know that I didn’t know.

[keithbvadu2]

2. There's a lot of empty 'space' between all those stars.

Sorry. I don't have the math to back it up.

[erronis]

3. Yes, but there are multitudes of stars behind that empty space to fill the void

only if they are visible within our sphere of light-travel-time since the big bang.

mind-boggling!

[Septua]

4. It seems mostly relevant to distance...

Distances in millions of miles greatly reduces the brightness of our sun.

What the sun looks like from other planets

https://www.huffpost.com/entry/what-the-sun-looks-like-from-other-planets_n_577ec142e4b0344d514e9182#:~:text=That's%20about%209.5%20times%20farther,look%20at%20without%20eye%20protection.&text=The%20sun%20as%20seen%20from%20Ariel%2C%20one%20of%20Uranus's%20moons,from%20Earth%20to%20the%20sun.&text=The%20sun%20as%20seen%20from%20Triton%2C%20one%20of%20Neptune's%20moons,size%20as%20seen%20from%20Earth.&text=The%20sun%20as%20seen%20from%20Pluto%2C%20which%20has%20an%20average,hard%20to%20look%20at%20directly.

Average distance between stars in our galaxy is 5 light years...30 trillion miles.