A planet beyond the Solar System
Astronomers have detected helium escaping from LHS 1140b, a rocky 'super-Earth' 48 light-years away that orbits in its star's habitable zone. The finding has confirmed an atmosphere around a habitable-zone rocky exoplanet for the first time and has been published in Science; teams used ground-based infrared spectroscopy and modelling.
NASA has launched the $4–4.3 billion Nancy Grace Roman Space Telescope from Kennedy Space Center aboard a SpaceX Falcon Heavy. The observatory has separated cleanly and is heading to Lagrange Point 2, about one million miles from Earth, for a five‑year primary mission to map billions of galaxies, search for exoplanets and study dark matter and dark energy.