Greeks called it Gaea.
Romans called it Terra or Tellus.
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If it's any planet other than Earth, always capitalize it. If you're talking about the planet Earth in an astronomical context, or in any other context where you feel a need to clarify you are specifically talking about Earth and not some other planet, capitalize it. For example: "Temperatures on Earth range from -89°C to 57°C." If you're using the word 'earth' in more of a casual, day-to-day sense, don't capitalize it. For example: "The tree branch broke off in the wind and fell to the earth with a thud."
The days of the week on the planet Mercury have different names and lengths compared to Earth.
The name plutonium is derived from the name of the dwarf planet Pluto; dwarf planet Pluto is after planet Neptune in the Solar system and plutonium is after neptunium in the periodic table of Mendeleev.
The Ishtar gate was dedicated to the Goddess Ishtar, which is another name for the planet Venus. hello hi ola
on planet earth