Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

The Andromeda galaxy is our closest galactic neighbour, barring dwarf galaxies that are gravitationally bound to the Milky ...

When you point a telescope toward the Pegasus constellation, you can discover a scene where the Milky Way stars and distant ...

Scientists are keen to get to the bottom of the dark matter puzzle because this phenomenon accounts for the vast majority of the "stuff" in the universe — about 85%, in fact. That means everything we ...

Since dark matter governs the motion of stellar streams, astronomers can use them to trace invisible dark matter in a galaxy. The Milky Way's galactic halo, a roughly spherical region surrounding ...

Scientists used changes in the supermassive black hole M87*'s accretion disk to infer its orientation, size and turbulence ...

Astronomers have unveiled surprising new details about a small galaxy, NGC 300, challenging existing theories on galaxy ...

A perplexing "break" in a stream of stars around the Milky Way could be the result ... dark matter within the larger halo of dark matter that envelops our galaxy. "This work opens a promising ...

The Milky Way’s distinctiveness lies in its satellite ... to the gravitational pull and influence of the host galaxy’s dark matter halo. “Our results suggest that lower-mass satellites ...

The Milky Way's galactic halo, a roughly spherical region that extends beyond the visible edge of the galaxy, contains dark matter and known stellar streams. Astronomers have discovered that the ...