Youve heard that one before, right? Its the common refrain in every fitness class ever, and in the majority of the bro-centric, muscle-building gyms out there. Its not bad, either. Its a refrain that ...

The galaxy cluster PLCKG 287.0+32.9, located 5 billion light-years away, exhibits an exceptionally violent collision of three subclusters, characterized by extensive turbulence and shock waves.

The hot gas in Phoenix is giving off copious amounts of X-rays and cooling quickly over time, especially near the center of the cluster, causing gas to flow inwards and form huge numbers of stars.

Astronomers have found an extraordinary galaxy cluster — one of the largest objects in the universe — that is breaking several important cosmic records. The discovery of this cluster, known as the ...

Astronomers have found an extraordinary galaxy cluster, one of the largest objects in the universe, that is breaking several important cosmic records. Observations of the Phoenix cluster with NASA’s ...

Astronomers have found an extraordinary galaxy cluster, one of the largest objects in the universe, that is breaking several important cosmic records. Observations of the Phoenix cluster with NASA's ...