"This is too much!"
Posted on 01/13/2017 6:13:38 PM PST by MtnClimber
Once we discovered that the Universe was expanding, the next scientific step was to determine what the rate of expansion was. Despite the fact that it's been more than 80 years, we still don't have agreement on how fast that rate actually is. By looking at the largest cosmic scales and the oldest signals -- the leftover radiation from the Big Bang and the largest-scale galaxy correlations -- we get one number for the rate: 67 km/s/Mpc. But if we look at individual stars, galaxies, supernovae and other direct indicators, we get another number: 74 km/s/Mpc. The uncertainties are very small: ±1 on the first number and ±2 on the second; statistically, there's less than a 0.1% chance these numbers will reconcile with one another.....
In 1923, Edwin Hubble was using the world's largest telescope to look for novae in other galaxies. I shouldn't say "galaxies" just yet, because humanity wasn't yet certain what those spirals in the sky were. While looking at the largest one -- M31, now known as the Andromeda galaxy -- he saw first one, then a second, then a third nova. But when the fourth one came, it would change everything. It occurred in the exact same location as the first, which was an impossibility, since novae takes centuries or more to recharge, yet this one had recurred in less than a week. Excitedly, Hubble crossed out the first "N" he wrote and replaced it, in red, with "VAR!" He realized it was a variable star, and since the physics of that particular class of variable star was known, he could calculate the distance to Andromeda. He showed it was well outside of the Milky Way, making it a galaxy unto itself. It was the greatest observation of a single star in astronomical history.
(Excerpt) Read more at forbes.com ...
But we know that plant food (CO2) is going to kill us all........./s
I am going out on a limb here and say it is expanding pretty darn fast.
Who said the universe is infinite? How do they know?
“But, but I thought science knew everything. So sayeth the Democrats.”
I know the head of the physics department at the local college. He’s lectured at Fermilab. He once told me that every scientific “fact” should be prefaced by the statement “At our present level of ignorance we assume that.......”
This story fits with the youtube ufo stories
It’s all relative.
Really?
But we know it is caused by man.
“Who said the universe is infinite?”
NASA has been telling us that forever. Probably because they don’t want us to know what’s on the other side. {:^)
“L. Ron Hubbard”
Just another Howard Hughes-Timothy Leary sort of wannabe.
NASA....Truman Show directors....
It’s not.
When you hot, you hot
When you cold, you not
You may be right. We my not know all the variables in what we think are constants.
Hundreds years from now Scientist will look back and laugh at out ignorance.
Probably something that will be repeated every few hundred years. Two hundred years ago was 1817. What did we know then? We did not even know about galaxies.
Expansion takes time. Maybe time is an illusion.
We don’t even know what Gravity is. I was amazed to read in the article that we have only been aware that the Andromeda Galaxy is outside of the Milky Way galaxy since 1932. I was born into a world that readily accepted this. It wasn’t even known at the time my father was born.
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