Science Updates - A look at CfA discoveries from recent journals

NGC 5253
March 27, 2015

New stars regularly appear in the night sky as the gas and dust in giant interstellar clouds gradually coalesce under the influence of gravity. The process of making stars, however, is inefficient, and (at least in present-day galaxies) there are copious amounts of material that don't make it into stars.

NGC 4365
March 20, 2015

Globular clusters are gravitationally bound ensembles of stars, as many as a million stars in some cases, grouped in roughly spherical clusters with diameters as small as only tens of light-years.

Abell 1689
March 13, 2015

In 1969, the astrophysicists Rashid Sunyaev and Yakov Zel'dovich realized that the then recently discovered cosmic microwave background radiation (CMBR) would be distorted by hot cosmic gas.