 Astronomy: The scientific study
of the Galaxies, Stars, Nebulae, Solar Systems and the
Universe. It deals with a celestial objects
relationship to the Earth, size, position,
composition, motion, evolution and energy.
Astronomers use telescopes, satellites,
computers, space stations and observatories
to study the universe.
Asteroid: A small to large
rocky celestial body that circles a star. |
| Comet: A celestial object with
ice at it's nucleus, when it approaches a star
it emits a tail of dust particles. |
| Meteor: A small celestial material
that when it enters an atmosphere disintegrates
white it leaves a streak of light in the sky.
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 Near Earth
Objects, Our Celestial Neighbors (IAU S236):
Opportunity and Risk |
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Defending
Planet Earth: Near-Earth Object Surveys and
Hazard Mitigation ... |
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Google
Scholarly Articles |
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Over
20,000 known asteroids now cruise the cosmos
near Earth |
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What
Happens If We Find Out An Asteroid Is Heading
For Earth? | Popular Science |
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Potentially Dangerous Asteroids
Near-Earth Asteroids |
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Photos of
Asteroids; Space Rocks | Asteroids in Deep Space
Near-Earth Objects |
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Near Earth
Objects, Our Celestial Neighbors (IAU S236):
Opportunity and Risk |
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Defending
Planet Earth: Near-Earth Object Surveys and
Hazard Mitigation ... |
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Meteors,
Asteroids, & Comets - Discover Magazine |
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Meteor
Showers from Active Asteroids and Dormant Comets
in Near ... |
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The
Characteristics of Comets, Meteors & Asteroids |
Sciencing |
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A
Background in Asteroids, Comets and NEOs | Las
Cumbres Obervatory |
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Comets,
Asteroids, Meteorites and More - Sen - space
television |
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Asteroids
Comets Meteors: Topics by Science.gov |
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Comets:
News on Sightings, Missions and Encounters -
Space.com |
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Comets
in the path of Earth | SETI Institute |
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Will
an asteroid hit Earth? Your questions answered.
| The Planetary Society |
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Near-Earth
Asteroids | What are they? Where do they come
from? |
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Scientist
Suggests Comet and Meteorite Impacts Made Life
on Earth ... |
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