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

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

NASA researchers show that artificial intelligence can anticipate solar flare buildups by tracking subtle changes across the ...

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 ...

Only two spacecraft have ever truly escaped the solar system, slipping beyond the Sun’s protective bubble into interstellar space. Their measurements are now reshaping how I understand the heliosphere ...

At an estimated velocity of 250,000 kilometers per hour, interstellar Comet 3I/ATLAS lacked the luxury of long, recurring ...

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

A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

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 ...

Comet C/2025 R3 (PanSTARRS) might be the brightest comet of the year, scientists predict.

Think our planet has some rough neighborhoods? Let’s be real, Earth is basically a luxury spa compared to what’s out there. Our Solar System harbors worlds so extreme that they make the harshest ...