In the Dark

There’s a new interactive map of the Universe created by astronomers at Johns Hopkins University using data from the Sloan Digital Sky Survey. You can read all about it here There’s also a nice video to watch:

The picture at the top of this post is not the actual map, it’s just a publicity poster. You can play with the fully interactive version here.

This reminds me that when I started as a researcher in cosmology, back in 1985, the biggest galaxy redshift survey available had only just over a thousand galaxies in it and probed only a tiny fraction of the volume of the Universe that has now been mapped, i.e. only out to a redshift of about 0.05.

I think this is called progress!

This entry was posted on November 21, 2022 at 12:39 pm and is filed under The Universe and Stuff with tags Sloan Digital Sky Survey, Sloan Digital Sky Survey SDSS. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.