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Explore Your Universe
Visit
the AstronomyFactBook almanac for
information about planets, moons,
constellations, galaxies, and more.
 Astronomy
Almanac
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Did You Know? |
Astronomy Factoids:
>
All of the atoms in your body (except
helium and hydrogen) originated
inside stars.
> The Sun
constitutes over 99% of the solar
system's total mass.
> Over 19,000 meteorites shower the
Earth's surface every day.
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