Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

The planets of the solar system orbit the sun in a complex and ever-shifting ballet, which can see them appear as glorious ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

Stars and planets are inextricably linked. They form together and stars shape the fate of planets. Stars create the dusty ...

The sun’s outer atmosphere resembles a pufferfish.

The two biggest planets in our Solar System in one telescope view. And catastrophe is imminent. If Jupiter and Saturn ...

Jupiter is the largest planet in the solar system, known for its massive size, strong gravity, powerful storms and many moons ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system. It’s an unprecedented ...

In late April 2026, a long-period comet will swing through the inner solar system. It will likely be visible with binoculars, ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

NASA’s Hubble Space Telescope has captured infant planets colliding around Fomalhaut, one of the brightest stars in the night ...