How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Something incredibly strange is happening in our cosmic neighborhood: a mysterious gravitational disturbance is hurtling Jupiter toward the Sun. If it sounds like science fiction, that’s because ...

"We didn't know what exactly to expect from these first observations – the sun's poles are literally terra incognita,” Sami ...

You might have seen the claim online, and it’s at least partially right, but it's not the only other number of days Earth has ...

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

The European Space Agency's Solar Orbiter captured the first-ever images of the sun's south pole in March, which were ...

Earth’s tilt is what causes the seasons; in the summer, when our planet’s pole is tipped toward the sun, the days are longer, and the true sun’s daily path across the sky is higher. The opposite is ...