Astronomers Discover Ultra-Diffuse Galaxies

Astronomers using the Dragonfly Telephoto Array and the 10m telescope at the W.M. Keck Observatory on Maunakea, Hawaiʻi, have discovered 47 so-called ultra-diffuse galaxies in the field of the Coma galactic cluster. These objects are nearly as wide as our home Milky Way Galaxy – about 60,000 light years – yet harbor only 1% as [...] —> Read More