
XMM-Newton
A cosmic bridge of gas connects two massive galaxy clusters, A399 and A401. With the help of the XMM-Newton satellite, scientists shed light on their hidden interaction, revealing the early stage of a galactic collision. […]
A cosmic bridge of gas connects two massive galaxy clusters, A399 and A401. With the help of the XMM-Newton satellite, scientists shed light on their hidden interaction, revealing the early stage of a galactic collision. […]