Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy.

An Egyptian sarcophagus shows the sky goddess Nut as being covered in stars and having a dark, undulating curve running ...

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

Spotted thanks to a fleeting light distortion in 2011, a mysterious duo — a tiny star and its hefty companion — has turned ...

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

While this is the clearest known evidence for the ancient Egyptians understanding the Milky Way, others examples have also been found to reveal ... and phases of planets, moons, and stars.

An unusual depiction of the ancient Egyptian sky goddess Nut may include a representation of the "Dark River" or "Great Rift" ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...