It's not quite a star, and it's not quite a planet — but it's soaring through the Milky Way, much closer than we thought. When you purchase through links on our site, we may earn an affiliate ...

NEW YORK — New measurements of tiny galaxies contradict scientists’ best model of dark matter, further complicating the already mysterious picture of the stuff that is thought to make up 98 percent of ...

Astronomers have discovered methane emission on a brown dwarf, an unexpected finding for such a cold and isolated world. The findings suggest that this brown dwarf might generate aurorae similar to ...

A new study of diffuse dwarf galaxies is challenging the prevailing galaxy formation model within the standard Cold Dark Matter (CDM) framework, leading to a proposed new model of dark matter.

When we think about places in space that might have had life, planets like Mars or the icy moons of Jupiter and Saturn are often talked about. These worlds have signs of water and could have once had ...