Scientists have used Chandra to make a detailed study of an enormous halo of hot gas enveloping two large, colliding galaxies. This unusually large reservoir of gas contains as much mass as 10 billion Suns, spans about light years,.
Hubble Photographs Cosmic Fountain Credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA) This interacting group contains several galaxies (called Arp along with a "cosmic fountain" of stars, gas and dust that stretches over light-years.
The Eagle Has Risen: Stellar Spire in the Eagle Nebula. A billowing tower of gas and dust rises from the stellar nursery known as the Eagle Nebula. This small piece of the Eagle Nebula is 57 trillion miles long trillion km).