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 ...

A small red dwarf star in the Milky Way has drawn attention after astronomers mapped four closely orbiting planets around it.

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 ...

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 ...

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

CAPE CANAVERAL, Fla. (AP) — Astronomers say they've spotted an object in our solar system that's believed to be from another part of the Milky Way galaxy. The European Space Agency says this is just ...

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 solar system passed through a vast wave of gas and dust around 14 million years ago, dimming Earth’s view of the night sky. The wave may even have left traces in our planet’s geological record.