MATTER MAP Scientists with the Dark Energy Survey have created the largest map of the universe’s dark matter. Red areas are relatively crammed with dark matter and normal matter, while blue areas are less dense.
Chihway Chang/University of Chicago/DES collaboration
FAR OUT The gravity of the huge galaxy cluster MACS J1149 bent the light from a bright blue star (one of the faint points of light just above and to the left of the super bright central star in this image), letting it reach us from 9 billion light-years away.
NASA, ESA, S. Rodney (JHU) and the FrontierSN team; T. Treu (UCLA), P. Kelly (UC Berkeley) and the GLASS team; J. Lotz (STScI) and the Frontier Fields team; M. Postman (STScI) and the CLASH team; Z. Levay (STScI)
IN THE BALANCE A trio of freefloating spacecraft called LISA (one of the satellites illustrated) will search for gravitational waves from space in a mission expected to launch in 2034.