First picture: day 0 (3.2 billion light years from earth)
Second picture: 320 days from the first pic.
Third picture: 1000 days from the first pic.
How do they know this? A supernovae clearly seen from the first pic can be seen in the other two images with the same positions but fading away in brightness.
Why are they different timelines? Gravitational lensing that not only bends light but also space time.
blueasian0682 t1_jb7ve9a wrote
Reply to James Webb Telescope captures the same galaxy at three different points in time in a single mind-boggling image by mirzavadoodulbaig
For those curious but don't want to read,
First picture: day 0 (3.2 billion light years from earth)
Second picture: 320 days from the first pic.
Third picture: 1000 days from the first pic.
How do they know this? A supernovae clearly seen from the first pic can be seen in the other two images with the same positions but fading away in brightness.
Why are they different timelines? Gravitational lensing that not only bends light but also space time.