The sun is much more than a bright light in the sky. It's a giant ball of burning gas that holds our cosmic neighborhood ...

The core of a star reaches temperatures—energy levels ... such as the wildly over-ionized iron (Fe¹³+) in our Sun's ...

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

An exoplanet is a planet that orbits a star other than our sun. “But the planet is too close to the host star, closer than the habitable zone … even if the star is about 2,500 degrees cooler ...

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

Show more In five programmes, Dava Sobel orbits the sun, getting as close as she dares, to understand the immense relationship we have with our nearest star. The Sun, our star, the source and ...

Stars like our own Sun produce “superflares” around once every 100 years, surprising astronomers who had previously estimated that such events occurred only every 3000 to 6000 years. The result, from ...

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it -- the flickering star is 2.2 million ...

It will then re-emerge as the pre-dawn “Morning Star” in October. Planet-spotting is all about perspective. From where we are in our orbit of the Sun the closest planet to us, Venus ...

When they reach the end of their long evolutions, smaller stars—those up to eight times as massive as our own sun—typically become white dwarfs. These ancient stars are incredibly dense.