Here’s a choil shot of the sun
Edit, this is an easier link
https://www.esa.int/Science_Explora...biter/Zooming_into_the_Sun_with_Solar_Orbiter
https://www.forbes.com/sites/jamiec...m-a-spacecraft-halfway-there/?sh=657f3b532507
Unless they havent crunched the numbers on other objects in the SMACS 0723 Webb Deep Field, it is not as 'deep' as Hubble.
The observable universe is said to have a radius of 46ish billion LY. Odd, given that light can't travel faster than the speed of light and, as you said, the universe is 13.8ish billion years old.The small galaxies in the background are around 13 billion light-years away. Given the universe is estimated to be 13.7 billion years old... Webb is pretty much seeing back to when the first stars and galaxies light up. If you want to look at older signals than that, I believe you have to look at the microwave background
The discrepancy is caused by the expansion of the universe and has been exacerbated by the added expansion caused by dark energy.
Nice summary.Hence the redshift!
I get the impression the Big Freeze is a leading contender as the ultimate fate of our universe? Wikipedia has collated the fate of the universe. It is beautifully depressing. In summary....
In about a billion years, the sun will become hot enough to evaporate our oceans. Runaway greenhouse will have killed off most complex life many millions of years before this event. By about 5 billion years, the Milky Way and Andromeda will collide to form a super cluster - 'Milkdromeda'. At around the same time, Sol will start becoming a red-giant. In 7-8 billion years, Sol may have expanded sufficiently to engulf the scorched rock that was previously known as Earth. Not long after, the sun will become a white-dwarf. The temperature of the planets in our solar system will plummet.
In 100 billion years, all galaxies within our local group will have merged into a single super galaxy. In 100-150 billion years, objects outside our local group will expand beyond our cosmological horizon. Light emitted by these objects will never reach us - they will be so redshifted that their wavelength become undetectable. Similarly, the cosmic microwave background will cool to undetectable levels. The universe beyond our local group will fade away into darkness. Our local group will be alone in the blackness.
In 1-100 trillion years, gas clouds will be depleted and star formation will end. Eventually all stars in the universe will exhausted their fuel. The universe will become extremely dark.
Beyond this, black holes will dominate the universe for an extremely long time. Eventually (1 googol years) all black holes will evaporate due to Hawking radiation. For pretty much the rest of time, the universe will be essentially be empty and exist in an extremely low energy state.
Although that future is melancholic, we can be grateful that we happen to live in one of the most colourful eras. The night sky is full of light - we are still able to observe stellar objects outside our local group. And for this... I suppose we can thank our lucky stars
PBS Spacetime
something with ship, sinking and ratsRussia is leaving the ISS in 2024!
Apparently they have plans to build their own orbital station.
Pity, since 2000 the ISS has largely transcended global politics and has been a decent picture of international collaboration. That said the ISS is aging. I believe NASA is planning to crash it into the South Pacific in 2031!
I was sure it was Epsilon CabinossiFrom the distant galaxy, Alpha Charcuterie
https://www.cnn.com/2022/08/05/europe/scientist-space-image-chorizo-intl-scli-scn/index.html
I hope he was able to get away from the fires. My old boss's hotel burned down. She's trying to get a flight back to California, along with everyone else.Been a while since we seen our friend @Keith Sinclair. Hope you're doing alright.
And no sign of little green men. The Webb team need to try harder.Wow, it's already been 2 years since JWST was launched.
Interesting article I want to stick around long enough to see what James Webb telescope finds in its lifetime. Have read about to get large mirrors in next generation telescopesNot Webb telescope information, but, interesting nonetheless.
https://arstechnica.com/space/2023/...elescope-design-could-far-surpass-james-webb/
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