Scientists have identified, at this point, more than 900 exoplanets -- planets that exist outside our solar system, orbiting other stars. We know those planets are out there; but we know that, in ...

For the first time, astronomers have detected the color of a planet beyond our solar system: It's blue, but not because there's water on its surface. It doesn't even have a "surface." Instead, the ...

One of the Earth's most distinctive features is its color, a beautiful light blue. Iconic photo after iconic photo has been taken highlighting the planet's place of the color spectrum, from NASA's ...