https://www.smithsonianmag.com/smart-news/astronomers-spot-the-most-distant-individual-star-ever-detected-in-outer-space-180979847/
The Hubble Telescope has resolved a star that is now 28 billion light years away, and dead. But its light has only travelled 12.9 billion years to get to us, because the Universe has expanded quite a bit since it set off (when the star was still shining brightly, and the Universe was only a fraction of its current age).
It was (or is, to us still) millions of times brighter than the Sun, and it's called Earendel.
I love this sort of thing.
Be fascinating when the James Webb telescope kicks in.
https://www.space.com/james-webb-space-telescope-instrument-alignment
....but what is the universe expanding in to? and does it have Rush and celebrity culture?
Literally into nothing. It's a very hard thing to conceptualise.
Quote from: Slim on April 03, 2022, 11:47:17 AMLiterally into nothing. It's a very hard thing to conceptualise.
I know how can there be nothing?
Quote from: Slim on April 03, 2022, 12:44:19 AMhttps://www.smithsonianmag.com/smart-news/astronomers-spot-the-most-distant-individual-star-ever-detected-in-outer-space-180979847/
The Hubble Telescope has resolved a star that is now 28 billion light years away, and dead. But its light has only travelled 12.9 billion years to get to us, because the Universe has expanded quite a bit since it set off (when the star was still shining brightly, and the Universe was only a fraction of its current age).
It was (or is, to us still) millions of times brighter than the Sun, and it's called Earendel.
I love this sort of thing.
That is head wrecking. So the light that hit the telescope is now 12.9 billion years old, but due to the expansion of the universe, it is now 25.9 billion years away. Does that mean that the universe is expanding at the speed of light or am I missing something?
Found a piece on that here:
https://askanastronomer.org/bhc/faq/2015/11/09/is-space-expanding-faster-than-light/
Nothing in the Universe can travel faster than light, relative to another object. But because the space between them is expanding, they nonetheless become further apart than their speed would permit if space were static.
It's a belter, isn't it?
Bloody micrometeoroids >:(
https://www.bbc.co.uk/news/science-environment-61744257
Quote from: Nick on June 09, 2022, 10:51:22 AMBloody micrometeoroids >:(
https://www.bbc.co.uk/news/science-environment-61744257
I think I have microhaemorrhoids