the.com/earth itself
a rounding error in the universe's budget that somehow grew opinions about itself.
means the third rock from the sun, and the only known place where matter got organized enough to ask why.
from from old english eorthe, meaning ground or soil, coined by people who had no idea they were naming a planet because they didn't know it was one.
age4.5 billion years, give or take a hundred million
waterless than 1 percent is fresh and accessible
shapenot round, an oblate spheroid bulging at the equator
magnetic fieldgenerated by a spinning ball of molten iron underfoot
for instance
pale blue dot — voyager 1 photo, 1990, taken from 3.7 billion miles out
blue marble — apollo 17 photograph, 1972, most reproduced image in history
vostok ice core — antarctica, 420000 years of climate data in frozen layers
chicxulub crater — mexico, the dinosaur-ending impact site, 66 million years old