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Earth radius (denoted as R 🜨 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).
A variety of unit symbols and abbreviations have been in use for the astronomical unit. In a 1976 resolution, the International Astronomical Union (IAU) had used the symbol A to denote a length equal to the astronomical unit. [7]
Earth is the third planet from the Sun and the only astronomical object known to harbor life.This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water.
Pregnant Alex Morgan Reveals Her Daughter's Hilarious Reaction to Seeing Her Mom as a Barbie Doll
In English, the Greek and Latin words occur in poetry as personifications of the Sun, Helios (/ ˈ h iː l i ə s /) and Sol (/ ˈ s ɒ l /), [2] [1] while in science fiction Sol may be used to distinguish the Sun from other stars. The term sol with a lowercase s is used by planetary astronomers for the duration of a solar day on another planet ...
Pay raises for lawmakers. Tuesday's bill would give lawmakers their first raise since 2009. Members of Congress currently make $174,000 a year, with increases for some leadership positions.
Investment tactics often require big buy-ins and high fees. New tech is lowering the price of entry in fields like direct indexing and private markets.
Comparing the size of Earth, Mars, and exoplanets of Kepler-20 and Kepler-42.. A sub-Earth is a planet "substantially less massive" than Earth and Venus. [1] In the Solar System, this category includes Mercury and Mars.