Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

A festive auroral display may be put on for a lucky few when coronal mass ejections hit Earth on Christmas Eve and Christmas Day.

Accessible to anyone the world over, witnessing the majesty of the solar system, including the Milky Way, and its billions of ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars ...

Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

It is a huge ball of burning gas made mostly of hydrogen ... is held in place by the Sun’s gravitational pull. The planets in the Solar System are all different but we can divide them into ...

Now a new theory suggests a two- to 50-Jupiter-mass object passing through the solar system could be the cause. The evolution of the orbits of the planets is a complex process. Initially ...