When a star dies, it does not go quietly. A Sun-like star in its final phase swells into a red giant, expanding to hundreds of times its original size and incinerating everything in its inner system.

In 1776, the year the American Revolution began, the known solar system was a tidy place. Six planets: Mercury, Venus, Earth, Mars, Jupiter, and Saturn. All visible to the naked eye, all known to ...

Space looks empty until you try to cross it. Far beyond Pluto, where sunlight is faint and the planets are long behind, ...

For the first time, NASA's TESS (Transiting Exoplanet Survey Satellite) mission has identified a planet orbiting a distant star thanks to its warping of space-time. Unlike the star-hugging transiting ...

The European Space Agency's XMM-Newton and NASA's Chandra X-ray space telescopes have spotted the aftermath of three bright explosions echoing through the outer spiral arms of our galaxy, the Milky ...

The date the world will end has been nailed down – but you still have time for quite a few pints before our planet Earth is screwed. Our life in the solar system relies on the sun, but the fiery ...

What 250 years has done to our solar system planet count. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.