The Daily Sift

6000 exoplanets, Mars life hints, Saturn’s mystery beads, a comet on approach. The cosmos is alive—are we near first contact?

• Dark energy isn’t constant after all: DESI’s 3‑year survey of nearly 15 million galaxies hints that the mysterious energy accelerating cosmic expansion is weakening with time . The data show the influence of dark energy may be decaying , suggesting the universe’s fate might be very different from the eternal acceleration once predicted • A baby planet caught in the act: Using the MagAO‑X adaptive optics system, astronomers captured the first clear image of WISPIT 2b—a five‑Jupiter‑mass prot...