Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, the Milky Way’s mass is about 1.5 trillion solar masses ...

Astronomers at the University of Michigan have discovered a new satellite of the Andromeda Galaxy (M31), the Milky Way’s closest major galactic neighbor, and it has broken the record for the ...

An artist's impression shows a red dwarf (left) and a white dwarf (center) closely orbiting each other. Astronomers believe the tight orbit causes the stars' magnetic fields to interact, releasing ...

A newly-discovered spiral galaxy, dubbed the Big Wheel, formed just 2 billion years after the big bang – far earlier, considering its size, than astronomers thought possible. Themiya Nanayakkara ...

Swirling through the Milky Way's central zone, in the turbulent region surrounding the supermassive black hole at the core of our galaxy, dust and gases constantly churn as energetic shock waves ...