Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Watch this video to find out more about the Earth, planets in our Solar System and ... Our Sun is just one of many billions of stars in our galaxy, which is called the Milky Way.

At least 50 billion planets in our own Milky Way galaxy are likely to be free-floaters ... like stars in circular planar orbits between out to 400 Earth-Sun distances from their parent star.

There could be planets around the supermassive black hole at the heart of our galaxy – and we may be ready to find them, scientists say. That hope comes after researchers found the first ever ...

Mashable Light Speed Want more out-of-this world tech ... Hurt (Caltech-IPAC) A conception of a super-Neptune planet orbiting a star in our galaxy. Credit: NASA / JPL-Caltech / R.

An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never ...

As a result of its vast size, the Milky Way can boast at least one planet ... the iron in our blood. When a star explodes in a lesser galaxy, this raw material for life shoots out into space ...