R136a1 is the highest mass star known in the Universe - new images from the Gemini Observatory suggest it is less massive than previously thought.
The Hubble Space Telescope has documented a set of enigmatic quasar ghosts. These ethereal green images mark the graves of these objects that flickered to life and then faded.
A team of astrophysicists has created a unique map of the sky that shows the magnetic field shaping the Milky Way galaxy, using data from the Planck Space Telescope.
A 14-hour exposure image cluster taken by the Hubble Space Telescope shows objects around a billion times fainter than can be seen with the naked eye.
