search for the universe’s missing matter by studying X-rays tagged posts

HaloSat, a new CubeSat mission to study the halo of hot gas surrounding the MilkyWay, was released from the International Space Station over Australia on July 13. Credit: NanoRacks/NASA

A new mission called HaloSat will help scientists search for the universe’s missing matter by studying X-rays from hot gas surrounding the Milky Way galaxy. Astronomers keep coming up short when they survey “normal” matter, the material that makes up galaxies, stars and planets. A new NASA-sponsored CubeSat mission called HaloSat, deployed from the International Space Station on July 13, will help scientists search for the universe’s missing matter by studying X-rays from hot gas surrounding our Milky Way galaxy.

The cosmic microwave background (CMB) is the oldest light in the universe, radiation from when ...