How large is the Earth?
The Earth's radius is 6378 kilometers, and its mass is 5.972 x 10^24 kilograms. Its surface area is about 510 million square kilometers.
<START_INST>How large is the Earth?<END_INST><START_CTX><END_CTX><START_A>The Earth's radius is 6378 kilometers, and its mass is 5.972 x 10^24 kilograms. Its surface area is about 510 million square kilometers.<END_A>