Chichachachi
Chichachachi t1_jb72447 wrote
Reply to comment by doubletaxed88 in James Webb Telescope captures the same galaxy at three different points in time in a single mind-boggling image by mirzavadoodulbaig
But why is it saying one was 320 days later and the other is 1000 days later? If it is just one image, how would we be able to know the time dilation to the precision of days of time difference? But also, James Webb was placed at the Lagrange point less than a year ago, so I guess we DO know the difference that light travelled to the degree of days.
The supernova event is 3.2 billion light years away. But we can actually tell that one lens delayed the light from one image by 320 days and the other by 1000 days. Incredible.
Chichachachi t1_j1zl6ch wrote
Reply to comment by Austiniuliano in Earth was brought to life by ancient water-rich asteroids from the outer Solar System by marketrent
All the oxygen on earth was pulled out by bacteria. The earth was anaerobic until about 2.5 billion years ago, when bacteria started to excrete oxygen as waste. We got to high levels by about 2 bya. Also, oxygen is toxic and it's why things rust and why our skin ages so quickly. But it's like rocket fuel so life took advantage.
Chichachachi t1_jb73cqq wrote
Reply to comment by Capgunkid in James Webb Telescope captures the same galaxy at three different points in time in a single mind-boggling image by mirzavadoodulbaig
There is actually only one galaxy.