Earth (also the world, in Gaia, or in Latin: Terra) is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.

@earth is a 2011 book made by the London born (and based) photomontage artist Peter Kennard with Lebanese artist Tarek Salhany. It is a photo-essay told through photomontage with seven chapters exposing the current state of the Earth, the conditions of life on it and the need to resist injustice. It was released on 1 May 2011 by Tate Publishing.