One of the youngest supernova remnants in our galaxy, Cassiopeia A glows with the energy of a star’s final breath.

Outer space is filled with trillions of giant balls of burning hydrogen and helium, or what we call stars. With all that ...

NASA's Hubble Space Telescope captures stunning image of supernova SN 2022aajn, helping astronomers measure cosmic distances ...

NASA’s recent Image of the Day was the outer regions of the ... which makes the stars appear redder than they are.” In addition to taking beautiful, otherworldly photos, the Hubble’s images ...