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Science

Kaleva

(40,430 posts)

7. There's 100 billion to maybe 200 billion galaxies in the observable universe

Reply to Jilly_in_VA (Original post)

Sun Aug 7, 2022, 03:16 AM

Aug 2022

We will never know how many galaxies are out beyond the boundary of the observable universe.

Each galaxy can hold trillions of planets.

It's possible that we humans are the only advanced form of life in our galaxy. Other galaxies may not have any and others could have a few to many.

Thus there could be millions or even billions of advanced civilizations out there but we may never detect them because the Universe is so freaking big.

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The One Critical Mistake Alien Hunters Keep Making [View all] Jilly_in_VA Aug 2022 OP

Here's an out-of-the-box thought on intelligence 4dog Aug 2022 #1

The bias is "life as we know it," and the key isn't methane, Warpy Aug 2022 #2

A few years ago... 2naSalit Aug 2022 #3

They're finding out what a weird little planet this is Warpy Aug 2022 #4

We're just figuring out Jilly_in_VA Aug 2022 #5

I believe another factor that is not thought of is cstanleytech Aug 2022 #6

Or they might be Jilly_in_VA Aug 2022 #10

There's 100 billion to maybe 200 billion galaxies in the observable universe Kaleva Aug 2022 #7

The universe is probably teeming with all sorts of life. Irish_Dem Aug 2022 #8

Am I the only one... Random Boomer Aug 2022 #9