A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense ...

NASA has announced the discovery of an Earth-like planet orbiting a Sun-like star that shares several other similarities with ...

Every day on Earth, you experience weather. You feel the wind blowing and see clouds move across the sky. Sometimes there are storms where the wind gets really strong, it might rain, or there might be ...

Our Earth is structured sort of like an onion – it’s one layer after another. Starting from the top down, there’s the crust, which includes the surface you walk on; then farther down, the mantle, ...

Our Sun, that steady burning ball of gas that has faithfully illuminated Earth for billions of years, is slowly but relentlessly growing brighter. This might sound like good news, but it's actually ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. [WATCH: In the video player above, check out ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere. This extraordinary environment is basically the sun's sphere of influence. It ...

The other two known interstellar comets did not offer such an opportunity.

"We consider this phenomenon as a promising candidate to explain the fact that the solar activity is much more benign than that of other sun-like stars." When you purchase through links on our site, ...

The Moon’s gravitational pull on Earth, combined with other forces, causes our surface water to be redistributed into bulges ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...