As such, it will likely be some time before we have a solid understanding of just how many solar systems exist within our galaxy. But it's not just the size of the Milky Way that makes it ...

As J.R.R. Tolkien wrote in The Fellowship of the Ring, “Not all those who wander are lost.” But in the case of planets, it’s possible that most of them are.

In fact, it takes more than four years for light to travel from the nearest star to our solar system. Meanwhile, exoplanets are both small and dim, and the Milky Way is a 100,000-light-year-wide ...

Those "arms" resemble the elongated structures of a spiral galaxy, like our very own Milky Way. At an epic timescale "comparable to the age of the solar system," which is 4.6 billion years old ...

The Milky Way is one of billions of galaxies in the universe and home to our own solar system. It appears as a hazy band in the sky when viewed from Earth.

There are around, well between 200 billion and 400 billion stars in the Milky Way galaxy and the majority of those have planets orbiting around them - solar systems of their own. But all that mass ...

The new study suggests that miniture solar systems would not necessarily look like our own. This composite of planets in our solar system was taken by various NASA spacecraft. Included in the ...