Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...

The boundary of the Solar System remains somewhat poorly understood. We know we are within it, in a region of space called ...

Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

The sun’s rhythmic rise and fall in the sky can make it easy to forget that our star is unpredictable—a roiling, burbling mass of magnetically knotted plasma that governs the entire solar system. The ...

The sun rises and sets every day. We plan our lives around it. It's ironic, then, that "we know so little about the star at the center of our solar system," says Matina Gkioulidou, a space physicist ...

"The instrument is, so to speak, the heart of the solar telescope, which is now finally beating at its final destination." When you purchase through links on our site, we may earn an affiliate ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's ...