One Earth compared to the size of the sun. ESA & NASA. Coronal holes are common; there is "nothing unusual here," Scott McIntosh, a solar physicist and the deputy director of the National Center ...

Astronomers have spotted what they think might be an "interstellar object" hurtling through the solar system — and it's ...

At aphelion, Earth’s distance from the sun is about 94.5 million miles. Six months later, at the start of January in the winter, Earth is at its closest point to the sun at 91.5 million miles ...

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Stars like the sun might erupt with extreme explosions about once per century. ... This composite image also includes a representation of Earth to show the CME's size compared to our planet.

Compared with the billions of other stars in the universe, the sun is unremarkable. But for Earth and the other planets that revolve around it, the sun is a powerful center of attention. It holds ...

Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

Venus could make a brief appearance this weekend as it passes between the Earth and the sun. Just be warned: It won't be easy to spot in the sun's glow, according to astronomers.