The X-ray results combined with supernovas information has given astronomers the best data so far about dark energy properties and it clearly shows that dark energy exists and it’s a cosmological constant. However, this raises another debate as scientists believe now that hidden dimensions really exist.

“Putting all of this data together gives us the strongest evidence yet that dark energy is the cosmological constant, or in other words, that ‘nothing weighs something’. A lot more testing is needed, but so far Einstein’s theory is looking as good as ever,” added Vikhlinin.

Ultimately, the astronomers predicted the destiny of the Universe that will continue to accelerate and expand which means that the Milky Way and the Andromeda galaxies will never merge with the Virgo galaxy clusters. In conclusion, the astronomers believe that about 100 billion years from now, we will not be able to see other galaxies from the Milky Way, and many other galaxy clusters will eventually decompose.