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rotation around a fixed axis
The Earth is rotating around a fixed axis.
to rotate around a fixed axis
The Earth is rotating.
(astronomy, mythology) Earth; Terra
Earth is one of the planets in the solar system.
terraforming (planetary engineering)
The process of terraforming is part of transforming other planets into a habitable environment for humans.
earth science
Earth science is an important field of study for unraveling the mysteries of nature.
an Earthling; a Terran
I am an Earthling.
extraterrestrial area
We are searching for extraterrestrial life.
Synonym of 天動説 (tendōsetsu, “geocentrism”)
He believes in the geocentric theory.
global warming
Global warming is a big issue that affects all of us.
a terrestrial planet
A terrestrial planet may have an environment similar to Earth.
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