Is the Earth more likely or less likely to be hit by an asteroid or comet now as compared to, say, 20 million years ago? Several studies have claimed to have found periodic variations, with the probability of giant impacts increasing and decreasing in a regular pattern.
Posted in 2012
Tagged Asteroid, asteroids, comet, Earth, GIANT, giant impacts, impact, million years, pattern, periodic variations, Probability, rate, time
I don’t know how fast asteroids travel, so lets just say it’s moving at an “average” speed and it’s large enough to wipe out all life on earth. Would this asteroid be visible to the naked eye for any significant amount of time before impact? Hours, days, weeks? Nighttime only, or daytime as well? I’m doing research for a sci-fi story and can’t seem to find an answer to this. Thanks in advance to anyone who can help.
Posted in 2012
Tagged amount, amount of time, Asteroid, asteroids, average speed, doing research, Earth, eye, impact, life, life on earth, naked eye, Nighttime, sci fi story, SPEED, thanks in advance, time, travel
This book explores the fundamental elements of meteors, comets, and asteroids as well as several films about these forces of nature. Featured titles include “Armageddon,” “Deep Impact,” and “Asteroid.”
Project Webster represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Project Webster continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge.
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This particular book contains chapters focused on Near-Earth object tracking, and Planetary defense.
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Comet/Asteroid Impacts and Human Society NEW
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Since they have no solid surface, how do asteroids “impact” the planet?
Posted in 2012
Tagged asteroids, Collide, gas, gas giants, impact, Planet, solid surface, surface
the one you could see the Crater made by it here on earth.
