In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

Finding Earth’s exact position in the galaxy took centuries of observation and innovation. This story follows astronomers as ...

Our solar system is just a tiny island within a vast galactic sea. This journey moves outward to explore the structure of the Milky Way, from its spiral arms to its mysterious core. Discover how our ...

Our Milky Way galaxy may not have a supermassive black hole at its center but rather an enormous clump of mysterious dark ...

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*.

Astronomers propose that an ultra-dense clump of exotic dark matter could be masquerading as the powerful object thought to ...

They slip through your skin, your walls, and the whole Earth without leaving a mark. Neutrinos earn the nickname “ghost ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

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 ...

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.

An accomplished CalTech astrophysicist with more than four decades of research contributions in galactic astronomy and the ...