Monthly Archive: June 2014

The Barnard's Star is the brighest object in the animation, which show how much it moved from 1991 (star on the right) to 2014 (star on the left)

The Barnard’s Star: a runner in the sky

A quick glance to the starry sky will often leave the casual stargazer with the impression that nothing is changing up there. Since the ancient times, man was captured by the motionless, fixed stars,...

Abell 2151: the Hercules Cluster

Abell 2151: the galaxy cluster in Hercules

Suspended in space and time at 500 millions of light years from us, there are a couple of hundreds of galaxies, forming the Hercules Cluster, also known as Abell 2151.  It includes galaxies of any...

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