The Space thread

[Stopsignhank]

I have been catching some old NOVA shows and there were some interesting things in the show.

1. The person who thought up the theory of the Big Bang was George Lemaitre who was a Belgian physicist and a Catholic priest. Odd to think that a Catholic priest came up with the Big Bang.

2. They were talking a lot about life being on other planets. Then made the point that if any type of life is found on a planet near us, then with the sheer number on stars and planets and galaxies there has to be life on other planets, or as they said "If life is found on another planet then 2 is a much bigger number than 1."

 

[Kaido]

hah cool

https://twitter.com/x/status/1976292107519226103

 

[Muse]

I have been catching some old NOVA shows and there were some interesting things in the show.

1. The person who thought up the theory of the Big Bang was George Lemaitre who was a Belgian physicist and a Catholic priest. Odd to think that a Catholic priest came up with the Big Bang.

2. They were talking a lot about life being on other planets. Then made the point that if any type of life is found on a planet near us, then with the sheer number on stars and planets and galaxies there has to be life on other planets, or as they said "If life is found on another planet then 2 is a much bigger number than 1."

Doesn't make a lot of sense to me to think that life could be unique to earth when you consider the number of galaxies and then the number of stars per galaxy.

There are an estimated 2 to 20 trillion galaxies in the observable universe, with the true number likely higher, as new telescopes like the James Webb Space Telescope are revealing more faint and distant galaxies than previously thought. Early Hubble telescope observations estimated around 120-200 billion, but subsequent analysis of deeper fields and theoretical models suggest this was an underestimate, indicating a higher density of small, faint galaxies in the early universe.

Number of stars per galaxy

The number of stars in a galaxy varies significantly, from dwarf galaxies with as few as a thousand stars to massive galaxies like IC 1101 containing 100 trillion stars. Our Milky Way galaxy is estimated to contain between 100 billion and 400 billion stars, with scientists using techniques like measuring starlight's color and brightness to estimate these figures.

 

[Kaido]

Doesn't make a lot of sense to me to think that life could be unique to earth when you consider the number of galaxies and then the number of stars per galaxy.

There are an estimated 2 to 20 trillion galaxies in the observable universe, with the true number likely higher, as new telescopes like the James Webb Space Telescope are revealing more faint and distant galaxies than previously thought. Early Hubble telescope observations estimated around 120-200 billion, but subsequent analysis of deeper fields and theoretical models suggest this was an underestimate, indicating a higher density of small, faint galaxies in the early universe.

Number of stars per galaxy

The number of stars in a galaxy varies significantly, from dwarf galaxies with as few as a thousand stars to massive galaxies like IC 1101 containing 100 trillion stars. Our Milky Way galaxy is estimated to contain between 100 billion and 400 billion stars, with scientists using techniques like measuring starlight's color and brightness to estimate these figures.