The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's ...

Barnard’s Star is located just 6 light-years away from us. It is the closest single star to the Sun and the fourth closest ...

And when all seven planets apart from Earth line up in order of their distance from the sun, it's a once-in-a-century ...

If everything in our solar system formed from the same solar nebula, why do the planets have different compositions? Herbert Wich Titusville, Florida To better understand why the planets have ...

Near the Sun, where temperatures were higher, only materials with high melting points, such as metals and silicates, could solidify. This led to the formation of the terrestrial planets—Mercury ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. After decades of ...

Scientists have confirmed the existence of four small, rocky planets orbiting Barnard's Star — the second closest star system to Earth — using a specialized instrument on the mighty Gemini ...