Dark matter is so pervasive throughout galaxies that its presence explains the stability and motion of stars in systems such as the Milky Way. For example, current models indicate that our galaxy is ...

Space observatories tend to work quietly, collecting data long before images reach the public. In March 2025, NASA launched the SPHEREx space telescop.

Discover how our solar system sits within the thin disk of the Milky Way and what this structure reveals about the formation ...

A new radio survey reveals that the Milky Way’s magnetic field is intricate, widespread, and deeply connected to how the galaxy is organized.

What if the Milky Way’s central “black hole” isn’t a black hole at all? A new model proposes that an ultra-dense dark matter core could mimic its gravitational pull.

For decades, scientists have theorized that the Milky Way Galaxy’s supermassive black hole, known as Sagittarius A* (Sgr A*), ...

New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the supermassive black hole Sagittarius A*.

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

Sagittarius A* may be a dense dark matter core instead of a black hole, offering a new explanation for the Milky Way’s central gravity.

Previous observations of stars whipping around an unseen mass—especially a bright star called S2—have pointed to an object ...

Galaxies are massive, far exceeding the size of the one depicted in the movie “Men in Black.” These celestial bodies span ...

Researchers looking for signs of extraterrestrial life instead stumbled upon a pulsar at the center of the Milky Way galaxy.