First pics from James Webb telescope

The image above covers the amount of night sky of one grain of sand held at arms length.

Baffling really.
 
news.sky.com

James Webb Telescope live updates: NASA reveals images that tell secrets of universe

NASA is unveiling the first set of images and photographs of the universe captured by the James Webb Space Telescope - watch and follow live.
news.sky.com news.sky.com

https://twitter.com/x/status/1546882929380450304

As for the deepfield...

"Known as Webb’s First Deep Field, the picture showcases a galaxy cluster called SMACS 0723 as it appeared 4.6 billion years ago."

It's crazy that isn't it, your not guessing what was there you're seeing it now, the light took that long to reach us. Its mind boggling really.

FXehySKWQAAul4N
 
I reckon we are living in a computer simulation and as our artificial intelligence improves some scientists are thinking it..
 
I like how humanity exploring and discovering new things about the universe with hugely impressive scientific achievements has turned in to sex jokes THIS quickly! 🤣
 
How can they accurately date how long etc seems impossible to be able to state billions of years ?
 
Trammo said:
How can they accurately date how long etc seems impossible to be able to state billions of years ?
Click to expand...
Billions of *light years. Which is a measurement of distance. (Which can only.be concluded by knowing the actual/ accurate approximate distance)

By measuring the parallax angle one can figure out with geometry how distant something is.

With 2 points of reference (from a ground based telescope used over time during earths natural orbit for example), we can infer the distance of an object by observing and thus calculating the "shift" in its displacement relative to the 2 points of observation with simple geometry.

Edit: sorry, I'm trying to explain this while half cut! 😅
 
Last edited:
Just found an old video that still resonates perfectly all these years later, the original hubble discovery is special and this video with the music is just absolutely mesmerising, even at the very low quality.

I remember watching this well over a decade ago and it's still just as calming, inspiring and thought provoking.

Still one of the best videos ever made on YouTube.


Headphones for best experience.
 
Trammo said:
How can they accurately date how long etc seems impossible to be able to state billions of years ?
Click to expand...
Parallax can be used for stars within our own galaxy or rather ‘relatively’ near in space terms. But no use for distant galaxies.
For that it is a mixture of observation and theory. The observable bit is called Redshift which is the velocity with which the galaxy is moving away from us as the universe expands. The theory bit is the Hubble constant which determines how fast something should be moving depending upon its distance away.
Apparently it holds up but unless Hubble’s constant becomes proven then it remains theoretical.
 
Dark_Side_of_the_Lune said:
Parallax can be used for stars within our own galaxy or rather ‘relatively’ near in space terms. But no use for distant galaxies.
For that it is a mixture of observation and theory. The observable bit is called Redshift which is the velocity with which the galaxy is moving away from us as the universe expands. The theory bit is the Hubble constant which determines how fast something should be moving depending upon its distance away.
Apparently it holds up but unless Hubble’s constant becomes proven then it remains theoretical.
Click to expand...
I'm still reading this 2 days later 🧐
 
You must log in or register to reply here.
Back
Top