Combined optical and X-ray image of Uranus.
Chandra image gallery. X-ray: NASA/CXO/University College London/W. Dunn et al; Optical: W.M. Keck Observatory.
Uranus emits extra x-rays, and scientists don't know why
They could be just reflections, or Uranus could have its own version of the Northern Lights
Scientists bombarded Stonehenge stones with X-rays to figure out where they came from
Most of the sarsens came from the area, but two remain a mystery
The Milky Way's supermassive black hole might have enabled the evolution of life on Earth
Chemical reactions caused by the X-ray emissions from the black hole could have spurred water formation