Helio
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Helio replied to the thread Hubble tension is now in our cosmic backyard, sending cosmology into crisis.I’m happy to put on a dunce hat if someone can explain to me why a slower expansion rate in the past, especially at Recombination, is a... -
Helio replied to the thread When you wish upon a star, is it already dead? An astronomer crunches the numbers.This article got me wondering about what we do see. So, thanks to VBA and the great data from here (AstroSCI), I found these...
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Helio reacted to Admin's post in the thread When you wish upon a star, is it already dead? An astronomer crunches the numbers with
Like.
The stars we can see in the night sky are a lot closer and live a lot longer than you would think. When you wish upon a star, is it... -
Helio replied to the thread Quiz about FTL galaxy observations.Yes, the purpose of this quiz does not support imaginative alternatives to mainstream cosmology. But BBT is open to falsification, but...
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Helio replied to the thread Quiz about FTL galaxy observations.Yes. I’m addressing a difficult concept that is mainstream for an expanding space (BBT). Namely, that light, once emitted, travels...
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Helio replied to the thread Quiz about FTL galaxy observations.That would be true if it were a Doppler model. It’s not. Hence the “cosmological redshift” describes it. At only ~ z=1,4 galaxies are...
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Helio replied to the thread 100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone.1925, Jan. 1 – AAS meeting in DC where Russell presented Hubble’s results of Cepheids in Andromeda and the Triangulum nebulae showing...
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Helio replied to the thread 100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone.1924 – Hubble throughout the years found 12 Cepheids with periods ranging from 18 to 50 days. M33 brought him 22 Cepheids with similar...
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Helio replied to the thread 100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone.1917 – Heber Curtis, using novae found in a spiral, found their distance to be far outside the MW. He further suggested, based on mag...
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Helio replied to the thread 100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone.1908 – Henrietta Leavitt publishes 1,777 variables from the SMC and LMC. She further noted that there were 16 in the SMC stating, “It is...
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Helio replied to the thread 100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone.Hubble, after attending Oxford, took up both the pipe and a British accent. Hubble deserves the credit to finally ending the...
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Helio reacted to ♥Nyara♥'s post in the thread Are billion dollar experiments such as LIGO justified ? with Like.
The world's economy produces 115 trillion dollars per year. The total expenditure on all research, all academia, all science, all...
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Helio reacted to Admin's post in the thread World's largest telescope threatened by light pollution from renewable energy project with Like.
Astronomers are sounding alarm bells as the world's most precious sky-observing location faces a light pollution risk due to a new...
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Helio replied to the thread World's largest telescope threatened by light pollution from renewable energy project.I sure hope the industrial complex moves as suggested.
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Helio reacted to Admin's post in the thread Hubble Telescope sees rare supernova explosion as a violent 'pale blue dot' (image) with Like.
The Hubble Space Telescope recently captured a snapshot of a rare supernova that sits in the Gemini constellation, about 650 million...
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