Astronomy/Cosmology

[Jasin]

I see.

[Bobby]

Is Universe 26.7 Billion Years Old? Tired Light Hypothesis Explored

[Jasin]

Interesting. Seems Monk tried to convince the world with some of his cherry-picking.

Still, what is not covered is how they have discovered immensely immense immense Black Holes and old Galaxies that would make their existence as they are - as if starting just 400 million years after the Big Bang prediction. This is where this guy probably tried his luck at a much older universe then.

[Jasin]

The very rare 2024 April ECLIPSE.

This very informative clip shows the rarity of such Eclipses and a very good visual and explanation of the Eclipse history and future.
https://www.youtube.com/watch?v=0fgbMTC30F8

[Black Orchid]

Thanks JaSin.

[Bobby]

Was this picture real?
Is it an angel?




https://x.com/NewsArticleColl/status/17 ... 7150635368

One of the most striking photos of auroras that have taken place around the world, reminiscent of an angel, taken in Norway.

[Jasin]

Sure does look like one.
That photographer was right time, right spot and squinting with his/her left eye.

[tllwd]

At the beginning of the "big bang" expansion there was a unified force but when the expansion began the force separated into
four basic forces in the universe as we know it.
These forces are: Electromagnetism, Strong nuclear force, Weak nuclear force and Gravity.

How these forces were once part of a unified whole is a mystery to scientists. Many physicists and cosmologists are still working on forming the Grand Unified Theory, which would explain how the four forces were once united and how they relate to one another.

[Jasin]

I just find it hard to believe that the Universe can only be perceived through Mathematics.

[Bobby]

The Planck Density: The Density of the Early Universe

I’ve looked at quite a few of the Planck base units, and I’ve even worked them out mathematically, but today I’m going to look at one of the derived units and I’ll compare it to some other things to see how big or small this is. Today then I’m going to be looking at the Planck Density. Let’s find out more.
Before we start, we need to know what density is. Density is a measure of how tightly packed a material is. In other words, how much stuff is packed into a certain volume of space.

To work out density then we need a formula, and units. To work out density we use the following formula, density and that is denoted by the greek letter rho equals mass divided by volume. The SI unit of density is kilograms per metre cubed. So now that we know what density is and we have our units, time to see how dense different materials are and then compare that to the Planck density, which is very dense indeed. At the end I’ll show you where the numbers come from. We’ll start off by looking at some very un dense things and work our way up.