A computer simulation of the formation of large-scale structures in the Universe, showing a patch of 100 million light-years and the resulting coherent motions of galaxies flowing towards the highest mass concentration in the centre. The snapshot refers to an epoch about 10 billion years back in time.
Klaus Dolag/VIMOS-VLT Deep Survey/ESO
Don't panic! The end of the Universe (as we know it) isn't likely to hit us for billions of years, if it comes at all. Pictured: the Milky Way rises above the ESO's ALMA facility in Chile.
José Francisco Salgado/ESO
An illustration shows the Earth's night sky 3.75 billion years from now, with the Andromeda galaxy (left) beginning to distort our own Milky Way as the two collide. While galactic collisions are eye catching, could something bigger be just over the horizon?
Z. Levay/R. van der Marel/T. Hallas/A. Mellinger/NASA/ESA