The Sky Tonight

April 02, 2015

Astronomers discover likely precursors of galaxy clusters we see today
Tucson AZ (SPX) Apr 02, 2015
By combining observations of the distant Universe made with ESA's Herschel and Planck space observatories, cosmologists have discovered what could be the precursors of the vast clusters of galaxies that we see today. Galaxies like our Milky Way with its 100 billion stars are usually not found in isolation. In the Universe today, 13.8 billion years after the Big Bang, many are in dense clusters of tens, or even hundreds of galaxies. However, these clusters have not always existed, and a key questio ... read more

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Human 2 Mars Conference Mat 5-7 2015 - Washington DC

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