"Planet Earth" refers to our home, the third planet from the Sun in our solar system. It is where all life as we know it exists, including humans, animals, plants, and all the diverse ecosystems we see around us. Full definition
There's really no doubt that astronomical cycles have influenced the growth and decay of ice on planet earth for the last 5 million years or so. (tamino.wordpress.com)
Since at least the 1960s, astronauts and satellites have been snapping photos of planet Earth from on high. (scientificamerican.com)
If you're a human from planet earth this can work for you too. (alldayenergydiet.com)