The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

In this case, there is an exceptional alignment between two galaxies and a background quasar, forming a rare six-image configuration," "We called it an 'Einstein zigzag' because the optical path ...

“Their absence has previously been attributed to the cosmic microwave background (leftover radiation ... believe fuel the formation of a quasar — the brightest known objects in the universe.

(AP) — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to ... of the obscuring cosmic microwave background left over from the Big Bang.