Astronomers say the unexplained feature doesn’t match anything seen before and challenges current models of the cosmos.

Astronomers from the Dark Energy Survey (DES) and collaborators recently announced the detection of an enigmatic linear streak in the cosmos—an immense cosmic “streak” that spans millions of light-years and defies conventional explanation.
Published in Astrophysical Journal Letters, the study led by Dr. Elena Wang et al. combines radio and optical sky surveys to map its coherent, high-contrast emission. The phenomenon challenges current models of large-scale structure, offering a possible clue to unknown cosmic forces or relics from the early universe.








