The first decades of the twentieth century, among the most productive ... let's return to the Andromeda Galaxy and examine it from our vantage point on the dust-grain planet we call Earth.

At least 50 billion planets in our own Milky ... of their parent cluster are most vulnerable. Once the cluster disperses (due to the influence of the galaxy) the external influences subside ...

VIRCAM can also spot very cold objects, such as free-floating planets ... slice of the galaxy. Its claim to fame is that it's the largest such map ever made and it's the most detailed.

and even most of the largest galaxies had fewer stars than modern giants like our own. What really jumps out is the relative heft of the black hole: It weighs in at 54 percent of its galaxy’s ...

A new study claims to have discovered about 200 ancient stars in the Milky Way’s halo, the most ... “Our galaxy and Andromeda are both so big, there’s hardly any space between ...