Hubble maps giant halo around Andromeda Galaxy

Baltimore MD (SPX) Aug 29, 2020

In a landmark study, scientists using NASA's Hubble Space Telescope have mapped the immense envelope of gas, called a halo, surrounding the Andromeda galaxy, our nearest large galactic neighbor. Scientists were surprised to find that this tenuous, nearly invisible halo of diffuse plasma extends 1.3 million light-years from the galaxy - about halfway to our Milky Way - and as far as 2 million lig