It's no surprise that NASA is keeping track of all potentially hazardous objects, or PHOs, that surround our planet. If it's closer than 4.6 million miles away and larger than about 350 feet in diameter, NASA's watching it. And if a comet or asteroid's orbit comes close enough to ours that there's some potential for it to collide with our planet, NASA classifies it as a PHO. If something that size smacked Earth, it'd cause a major tsunami (if it hit water) or major regional destruction (if it hit land).
There are 1,397 known potentially hazardous asteroids (PHAs) at the moment, which you can see in this list. (The other PHOs are comets.) But why look at a list when you can look at a massive gorgeous picture? The image above, taken from NASA/JPL's Photojournal, shows all 1,397 of those PHAs as represented by their orbits. Kind of amazing that we haven't been hit by one, isn't it?
Why does it look like Earth is in the worst possible orbit?
Is it because we're primarily looking for Earth crossing asteroids?
From laymans prospective, if we look at the length of each orbit, the time that each object spends in our orbital path is very small, like a percent of a percent, so cumulatively the risk is still very small.
I would think that the objects with the shortest orbit around the sun, if each one does infact orbit the sun, would be the one that has the highest chance of hitting us over a given period of time and vice versa for the object with the longest orbit around the sun.
Not that amazing that we haven't been hit by one - we wouldn't be around to be amazed if we had.
Doomed! DOOMED, I TELL YA!
ASTEROIDS, COMETS, AND METEORS ORIGINATED FROM EARTH: In the Earth's past there were powerful volcanic explosions propelling millions of tons of earth soil and rock (now asteroids and meteors which may contain organic molecules or organisms) into space. Read my popular Internet article, ANY LIFE ON MARS CAME FROM EARTH. The article explains how millions of tons of Earth soil may exist on Mars, and how debris we call asteroids and meteors could have originated from Earth. According to a Newsweek article of September 21, 1998, p. 12 that quotes a NASA scientist, SEVEN MILLION tons of Earth soil may exist on Mars! How could this be possible? Read and find out.
Even if the right chemicals exist, life cannot arise by chance. The molecules that make-up life have to be in a sequence, just like the letters found in a sentence.
Scientist and creationist, Brian Thomas explains:
“Astronomers measure comets' masses and erosion rates to calculate potential lifespans. Sungrazing comets last fewer than 100,000 years.2 They thus confront secular astronomy which maintains that comets formed with the rest of the solar system billions of years ago. A solar system that old should have no remaining comets.
How do secularists solve this dilemma?
Reporting on Ison, The Independent said, "Comet Ison has taken millions of years to reach us travelling from the so-called Oort cloud – a reservoir of trillions and trillions of chunks of rock and ice, leftovers from the birth of the planets."3
Unfortunately, nobody has yet witnessed a single one of those "trillions and trillions of chunks." Going strictly with observational science, the "so-called Oort cloud" may exist only in the reservoir of the human mind.
Clearly, secular astronomers invented the Oort cloud to rescue their billions-of-years dogma from a disintegration process that limits a comet's age—and thus the age of the Solar System—to thousands of years. When Ison becomes visible later this year, perhaps it will remind thoughtful viewers that the universe is quite young, just as Scripture teaches” (Brian Thomas, M.S., Science Writer at the Institute for Creation research).
Check out my most recent Internet articles and sites: THE SCIENCE SUPPORTING CREATION and WAR AMONG EVOLUTIONISTS (2nd Edition)
Babu G. Ranganathan*
Author of popular Internet article, TRADITIONAL DOCTRINE OF HELL EVOLVED FROM GREEK ROOTS
*I have given successful lectures (with question and answer period afterwards) defending creation before evolutionist science faculty and students at various colleges and universities. I've been privileged to be recognized in the 24th edition of Marquis "Who's Who in The East" for my writings on religion and science.
there are 2 correction to this image to make it less intimidating (as in actual reality)
first: this is a 2D space only representation of a 4D space and time case were many asteroid path planes are stacked on a single plane and the asteroid (point) is represented by a long (string)
second:this is a far a way image were the the line representing the asteroid path is thick as earth it self
so it will look more relaxing for the nerve seeing this world in the actual dimensions and we can see a lot of safe (space)
don't be ignorant WWW.hearislam.com
Don`t forget we have already been hit multiple times by these things some may have wiped out other life forms in the past. The question is when is the next one and can we see it coming and prevent it from hitting.
Have a nice day.
"Kind of amazing that we haven't been hit by one, isn't it?"
If this means amazing that we haven't been hit by one of the objects in the picture, that's tautological; if we'd been hit by one, it wouldn't still be in the orbit shown.
If it means amazing that we haven't been hit by a similar object NOT currently in an orbit, well, we have. The Earth has been subjected to the same sort of bombardment as the moon. Most of the obvious scars have been eroded away here, but the moon still shows its shooting-gallery status.
But this picture grossly underestimates the number of dangerous rocks floating around. Stuff a mere 4.6 million miles away? That's a pretty tiny sample, considering that the picture encompasses an area about a BILLION miles across.
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That is too many asteroids to keep track of especially if you look at their path in the solar system.
LIFE IS TOO SHORT.