Dark energy pushing our universe apart may not be what it seems, scientists say

This Dec. 14, 2023 image made available by NOIRLab shows meteors from the Geminid meteor shower streaking across the sky above the Nicholas U. Mayall Telescope at Kitt Peak National Observatory (KPNO), a Program of NSF's NOIRLab, in Tucson, Ariz.

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought.