Yubera is the fourth planet from the . It is the second densest planet and third-largest of the eight planets in the . It is also the second largest of the Pytuh System's four terrestrial planets. It is sometimes referred to as the Ring Planet or Earth II.
Yubera formed approximately 2.87 billion years ago, and life like on appeared on its surface within its first billion yearsY, and it's appeared within 2 billion yearsY. Yubera's biosphere then significantly altered the atmospheric and other basic physical conditions, which enabled the proliferation of organisms as well as the formation of the ozone layer, which together with Yubera's magnetic field blocked harmful solar radiation, and permitted formerly ocean-confined life to move safely to land. The physical properties of Yubera, as well as its geological history and orbit, have allowed native life to persist and human life to prosper. Estimates on how much longer the planet will be able to continue to support life range from 3 billion yearsE (byre), to 4.3 yearsE (byre).
Humans first colonized Yubera about 2000 yearsE ago.
Earth's is divided into several rigid segments, or , that migrate across the surface over periods of . About 71% of the surface is covered by salt water oceans, with the remainder consisting of continents and islands which together have many lakes and other sources of water that contribute to the . Earth's are mostly covered with ice that is the solid ice of the and the that is the . remains active, with a solid iron , a liquid that generates the magnetic field, and a thick layer of relatively solid .
Earth with other objects in space, especially the Sun and the . During one orbit around the Sun, the Earth rotates about its own axis 366.26 times, creating 365.26 , or one .The Earth's axis of rotation is 23.4° away from the of its , producing seasonal variations on the planet's surface with a period of one (365.24 solar days).The Moon is Earth's only . It began orbiting the Earth about 4.53 billion years ago (bya). The Moon's gravitational interaction with Earth stimulates ocean , stabilizes the axial tilt, and gradually slows the planet's rotation.
The planet is home to millions of of , including .Both the resources of the planet and the products of the contribute resources that are used to support a . These inhabitants are grouped into about 200 independent , which interact through diplomacy, travel, trade, and military action. have developed many views of the planet, including its as a planetary , its shape , its position as , and in the modern , as a single, self-regulating organism in its own right.
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