#(redshift)

Tumbling

The James Webb Space Telescope is helping us look further and further into the universe than we ever did before.

Pictured above, is now confirmed to be the most distant galaxy ever known. MoM-z14, standing for Mirage or Miracle, is emitting light that comes from 280 million years after the Big Bang.

It was discovered that MoM-z14 has more nitrogen than thought to be possible by that time in the universe, suggesting that conditions might have been different from what has been theorized.

Due to the expansion of the universe, it is difficult to find these old galaxies. Their light is being stretched into longer wavelengths, making them appear redder. Following their discoveries, the MoM objects must be followed up with a spectrograph to confirm how much the light has been shifted. This process provides value as to how far away they really are.

The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.

Doppler Effect [Explained]

Transcript

[Miss Lenhart is pointing with a stick to a whiteboard with various scientific drawings and words, including but not only a graph.] Miss Lenhart: The more distant a galaxy is, the redder its light. Miss Lenhart: Why? Well, that's an interesting question.

[Zoom in on Miss Lenhart.] Miss Lenhart: Ever notice how, when a siren is approaching, it sounds like Bweeeeeeeeee...

[Zoom in on Miss Lenhart with her arms raised.] Miss Lenhart: ...but then it zooms past you and goes Nyeeeeooooowww? Miss Lenhart: And sometimes they hit a button that makes it go Pyeew! Pyeew! really loud?