We just found 72 new galaxies in one of the most studied areas of the sky. We can’t see their stars, but they were revealed by the glow of hydrogen gas
Hubble’s Ultra Deep Field just got even deeper. Astronomers have found 72 mysterious new galaxies in this tiny spot of the sky that were too faint for even the Hubble space telescope to see.
The Hubble Ultra Deep Field is an image of a small region of relatively dark space next to the Fornax constellation. Though the image only covers an extremely small fraction of the sky, it contains about 10,000 galaxies.
Now, astronomers using the Multi Unit Spectroscopic Explorer (MUSE) instrument on ESO’s Very Large Telescope in Chile have looked even deeper into the same region and examined the light from 1600 faint galaxies, including 72 that we had never seen before.
“These galaxies are not unexpected, but nobody thought we would see them,” says Jarle Brinchmann at the University of Leiden in the Netherlands. “We