A group of about 1,000 stars known as the beehive cluster is swarming a sky near you. Here's when and how to see them.
Research led by Daniel Ivanov, a physics and astronomy graduate student in the Kenneth P. Dietrich School of Arts and Sciences at Pitt, uncovered a contender for one of the earliest observed spiral ...
Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.
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