ASTRONOMY & SPACE

New information about what is inside Mars shows the Red Planet has a molten liquid-iron core, confirming the interior of the planet has some similarity to Earth and Venus.

Mercury is, next to Pluto, the second smallest planet in our solar system and the one closest to the sun. Due to its proximity to the sun it has the smallest “year” (time required for a full orbit around the sun), equal to 0,24 of an earth year.