Using the NASA’s James Webb Space Telescope, a team of researchers led by University of Minnesota astrophysicist Mason Huberty had a closer look at a group of almost 10,000 galaxies spanning billions of light-years in the Fornax constellation. As detailed in a new paper published in The Astrophysical Journal, they honed in on a small space in the region that they thought was entirely unoccupied.
But to their astonishment, they observed a single emission line emanating from it — twice over a span of just three months. Emission lines are bright, narrow bands of light emitted at a specific wavelength by distant celestial objects and other phenomena. Puzzlingly, prior observations from the same region didn’t feature the same reading.
Put simply, the JWST stared into the abyss — and the abyss stared back.
Instead of hunting down already known objects, Huberty and his colleagues tried to use the James Webb’s Near-Infrared Spectrograph to uncover new ones, as Science Alert explains. The team examined what they thought was an empty region twice, in August and November 2023, at different angles to rule out any artifacts.
