At the far edge of the Solar System, where the Sun’s influence thins into the dark between the stars, a pair of aging ...

"If our solar system is indeed moving this fast, we need to question fundamental assumptions about the large-scale structure of the universe." When you purchase through links on our site, we may earn ...

"Solar Orbiter can now provide this missing piece of the puzzle." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In a striking new view from ...

Far from our solar system, brief explosions of electric-blue light are flaring in distant galaxies, outshining entire star ...

Even as a brilliant, naked-eye comet slices through Earth's sky (cheers, Comet Lemmon!), the most famous object in the solar system right now is hidden on the far side of the sun: the interstellar ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble Telescope and its Wide Field Camera 3 got an incredible view of the comet ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...