Hubble Views a Young and Dynamic Elliptical Galaxy

Elliptical galaxies are usually filled with old, dying stars. NGC 2865, however, is relatively youthful and dynamic, with a rapidly rotating disk full of young stars and metal-rich gas. For an elliptical galaxy it contains an unusually high number of young stars — suggesting that a galaxy-wide starburst took place…

Herschel and Planck find missing clue to galaxy cluster formation

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…