using nothing more than newton’s laws of gravitation, we astronomers can confidently predict that several billion years from now our home galaxy, the milky way, will merge with our neighbouring galaxy, andromeda. because the distances between the stars are so great compared to their sizes, few if any stars in either galaxy will actually collide.
any life on the worlds of that far off future should be safe, but they will be treated to an amazing billion-year-long lightshow.
a dance of a half a trillion stars, to music first heard on one little world, by a man who had but one true friend.

(via deoxyribose)

intothegreatunknown:

The Milky Way | Lake Tekapo, New Zealand (by Fernandez Barrett)

(via orionfalls)

(via oxogen)

string-theory:

… Here is one of the largest objects that anyone will ever see on the sky. Each of these fuzzy blobs is a galaxy, together making up the Perseus Cluster, one of the closest clusters of galaxies. The cluster is seen through a foreground of faint stars in our own Milky Way Galaxy. Near the cluster center, roughly 250 million light-years away, is the cluster’s dominant galaxy NGC 1275, seen above as a large galaxy on the image left. A prodigious source of x-rays and radio emission, NGC 1275 accretes matter as gas and galaxies fall into it. The Perseus Cluster of Galaxies, also cataloged as Abell 426, is part of the Pisces-Perseus supercluster spanning over 15 degrees and containing over 1,000 galaxies…

(via starsaremymuse)

the-wolf-and-moon:

Halo of NGC 6164 

(via lunablivion)