Let There Be Light
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- Fledgling
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Let There Be Light
Astronomers have detected a signal from the first stars as they appeared and illuminated the universe, in observations that have been hailed as “revolutionary”.
The faint radio signals suggest the universe was lifted out of total darkness 180m years after the big bang in a momentous transition known as the cosmic dawn.
https://www.theguardian.com/science/201 ... e-universe
Now we know when the words let there be light took place
The faint radio signals suggest the universe was lifted out of total darkness 180m years after the big bang in a momentous transition known as the cosmic dawn.
https://www.theguardian.com/science/201 ... e-universe
Now we know when the words let there be light took place
- Jlabute
- Guru
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Re: Let There Be Light
Good article.
https://arstechnica.com/science/2018/02/signal-of-the-universes-first-stars-hints-at-odd-form-of-dark-matter/
Somewhat of a co-article commentary suggesting more data would be necessary to raise the confidence level. Can't imagine how much of a difference there can be between extremely probable, and fully confident.
https://arstechnica.com/science/2018/02/signal-of-the-universes-first-stars-hints-at-odd-form-of-dark-matter/
Somewhat of a co-article commentary suggesting more data would be necessary to raise the confidence level. Can't imagine how much of a difference there can be between extremely probable, and fully confident.
Lord Kelvin - When you can measure what you are speaking about, and express it in numbers, you know something about it.
- JagXKR
- Lord of the Board
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Re: Let There Be Light
I am very much anticipating this merger. When Larry Molnar, and team, made this prediction last year I was a bit skeptical but after reading their paper I was excited. I agree with their hypothesis and will be ready for the day, if I'm still around.
http://earthsky.org/space/star-predicte ... de-in-2022
http://earthsky.org/space/star-predicte ... de-in-2022
Why use a big word when a diminutive one will suffice.
- Jlabute
- Guru
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- Joined: Jan 18th, 2009, 1:08 pm
Re: Let There Be Light
That’ll be exciting. Get your telescope ready. I suppose it already has Nova’d, you just have to get closer to see it ;-) it will be as bright as Polaris?
“The system is predicted to result in a merger in 2022.2±0.6, producing a luminous red nova reaching an apparent magnitude 2. The luminous red nova should remain visible to the naked eye for roughly a month.”
“The system is predicted to result in a merger in 2022.2±0.6, producing a luminous red nova reaching an apparent magnitude 2. The luminous red nova should remain visible to the naked eye for roughly a month.”
Lord Kelvin - When you can measure what you are speaking about, and express it in numbers, you know something about it.
- JagXKR
- Lord of the Board
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- Joined: Jun 19th, 2011, 6:25 am
Re: Let There Be Light
It will be closest to the star Rukh in Cygnus. That star is a similar magnitude to the predicted magnitude of the nova. However the nova will be much more red. The human eye sees the blue light differently than red and if both stars were exactly the same brightness the human eye would see the nova as slightly dimmer. The good news is if the nova reaches +2 magnitude it will be slightly brighter than Rukh and very easily seen. Even in the city. Rukh is the right hand star of the cross.
Why use a big word when a diminutive one will suffice.