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"It's the gravity that shapes the large scale structure of the universe, even though it is the weakest of four categories of forces." -Stephen Hawking Galaxies don’t just exist in isolation in our Universe, but are often found bound together as a part of even grander structures. Our own Milky Way is bound in a galactic group (our local group), nearby are larger groups and galaxy clusters, and on still larger scales, cosmic superclusters appear to encompass as many as 100,000 individual galaxies.

"On a cosmic scale, our life is insignificant, yet this brief period when we appear in the world is the time in which all meaningful questions arise." -Paul Ricoeur Ask anyone who's looked up at a dark sky on a clear, moonless night, and you'll immediately hear tales about how incomprehensibly vast the Universe is.

October 29, 2017 What better way to say farewell than with a slew of costume pictures from this year's (coming) Halloween? Happy Halloween 2017! From Ethan Siegel and Starts With A Bang. Keep looking to the Universe. And we'll have a lifetime of wonderful things to still explore. Goodbye, Scienceblogs,… October 28, 2017 "Delay is the deadliest form of denial." -C. Northcote Parkinson Every massless particle and wave travels at the speed of light when it moves through a vacuum. Over a distance of 130 million light years, the gamma rays and gravitational waves emitted by merging neutron s...