Skip to main content

Galaxies Actively Forming in Early Universe Caught Feeding on Cold Gas

View Filtered Press Releases View All Press Releases
May 23, 2024 2:00PM (EDT)Release ID: 2024-114
This illustration is awash in bright blues, with only areas of the black background of space peeking out near the edges. Just above center is a large white spiral galaxy that is forming within a large cloud of blue gas. Its spiral arms twirl clockwise. Immediately around the galaxy’s edges are larger light blue dots. The gas appears thicker and brighter blue below the galaxy and toward the bottom left in what looks like a loose, extended column. Other wispy blue gas appears all around the galaxy, extending to every edge of the illustration. There are two additional spiral galaxies, though they are about half the size of the one at the center. They appear toward the top left and bottom right, and both are connected to regions of blue gas. Several bright knots dot the brightest blue areas near the center, and toward the top right. The background is clearer and more obviously black along a wider area at the left edge, a sliver along the top right, and in triangles toward the bottom right corner.

Summary

Only Webb can detect and investigate these galaxies, which were forming within dense, opaque gas when the universe was only a few hundred million years old.

A team in Denmark examining archival data from the James Webb Space Telescope recently found a trio of distant galaxies that are in the process of gathering gas when the universe was only a few hundred million years old. Their detection and characterization are remarkable achievements that only Webb is currently capable of, thanks to its specialization in infrared light. The data show for the first time that large reservoirs of gas surround these early galaxies. That gas will eventually fall into the galaxies, fueling new star formation, and, over millions of years, lead to highly structured galaxies brimming with stars.

Lee esta historia en español.

Full Article

Researchers analyzing data from NASA’s James Webb Space Telescope have pinpointed three galaxies that may be actively forming when the universe was only 400 to 600 million years old. Webb’s data show these galaxies are surrounded by gas that the researchers suspect to be almost purely hydrogen and helium, the earliest elements to exist in the cosmos. Webb’s instruments are so sensitive that they were able to detect an unusual amount of dense gas surrounding these galaxies. This gas will likely end up fueling the formation of new stars in the galaxies. “These galaxies ...

Read More on NASA.gov

Callout: Full Press Release

Visit NASA Science to view the full news release including article text and associated Webb imagery, graphics, scientific visualizations, videos, captions, text descriptions, and other information.

News releases highlighting the discoveries of NASA’s James Webb Space Telescope are produced for NASA by the Space Telescope Science Institute (STScI) in Baltimore, Maryland, under NASA Contract NAS5-03127. News release content is developed by the News Team in STScI’s Office of Public Outreach.

End callout
This site is protected by reCAPTCHA and the Google

Contact our News Team 

Contact our Outreach Office