ESA's Euclid mission has reached another milestone on its journey towards launch. Its two instruments are now built and fully tested. These have been delivered to Airbus Defence and Space in Toulouse, France, where they are now being integrated with the telescope to form the mission's payload module.

The Cage, as the elevator is called, leaves at exactly 7:30 a.m. Latecomers are out of luck.

Recently, researchers from the National Astronomical Observatory of the Chinese Academy of Sciences quantified the potential of gravitational wave detection in the era of the Square Kilometer Array (SKA). The study was published in Physical Review D.

An important breakthrough in how we can understand dead star collisions and the expansion of the Universe has been made by an international team, led by the University of East Anglia.

Astronomers can go their whole career without finding a new object in the sky. But for Lina Necib, a postdoctoral scholar in theoretical physics at Caltech, the discovery of a cluster of stars in the Milky Way, but not born of the Milky Way, came early—with a little help from supercomputers, the Gaia space observatory, and new deep learning methods.