Phil Marshall

The Vera C. Rubin telescope has released test images of a tiny patch of sky, packed with millions of galaxies and 93 new asteroids. These data will help fine-tune the equipment ahead of a full survey set to begin in 2026, turning the static sky into a movie.

In pursuit of elusive dark energy, scientists have found a workaround: using pairs of independent gravitational lenses with nearly identical deflectors. Simulations for the LSST survey show that such 'pseudo-double' systems allow measuring the cosmological equation of state with unprecedented statis