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 ...

The fourth planet in the system is a rocky world, while the second and third ones are gas planets.

NASA's Pleiades supercomputer has provided fresh insights into the Oort cloud – a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort cloud's ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall, ...

In February, the bright band of the Milky Way appears higher in our pre-dawn sky. Find out where and when to see it.

Over the last week, we’ve been entertained by a pre-Halloween visitor from the depths of our solar system. It’s Comet Tsuchinshan-Atlas, a ghostly dirty snowball of rock, gas, and dust partially ...

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.

Fig. 2: The Radcliffe wave. The clouds that comprise this structure are highlighted in red and superimposed on an artist's illustration of the Milky Way. The location of the Sun is highlighted by the ...

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

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