Solar System Reference Guide

Earth


Earth
APPROX AGE: 4.6 BILLION YEARS
AVERAGE DISTANCE FROM SUN: 150 MILLION KILOMETRES (1 AU)
DIAMETER: 12,765 KILOMETRES
VOLUME: 10¹² KILOMETRES³
MASS: 5.977 X 10-24 KILOGRAMS
GRAVITY: 9.78 M/SEC²
ATMOSPHERE: NITROGEN, OXYGEN, ARGON
NUMBER OF MOONS: 1, THE MOON
EARTH YEAR: 365.26 DAYS
EARTH DAY: 23 HOURS 56 MINUTES 4 SECONDS
POPULATION: APPROACHING 6 BILLION

The Earth is the only known planet to support life, both in our solar system and beyond.
Although how long Human life can continue to be supported is unclear, the current activities of the Human race continue to threaten the planet. These include massive over population problems, and release of toxic chemicals as by products of industrial manufacture and energy production.

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