Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy. These "free-floating" worlds don't orbit stars, but instead roam the ...

Stargazers accustomed to scanning the Milky Way galaxy may notice something odd overhead this month: barely any milk in that way.

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

Astronomers say that 'Oumuamua could have been traveling through the Milky Way for hundreds of millions of years before its encounter with our solar system ... cost solution compared to other ...

Astronomers say that 'Oumuamua could have been traveling through the Milky Way for hundreds of millions of years before its encounter with our solar system. Just two years after this unexpected visit, ...

The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.

This ultra-massive system ... Milky Way -- both in shape, size, and stellar mass," she adds. Its disk spans over 60,000 light-years, comparable to our own galaxy, and contains more than 100 ...