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The U.S. space organization does not have the monetary resources to track all of the flying objects that could pose a threat to Earth

Even though the National Aeronautics and Space Administration (NASA) is able to detect and monitor most asteroids that are close enough in case of potential impact with Earth, the U.S. space organization lacks the proper funding to get it done within the deadline that Congress imposed in 2005.  Specifically, Congress wants NASA to detect 90% of the near-Earth objects (NEO) range from 140 meters in diameter up to more than a kilometer and a half.

The NASA report speculates there are around 20,000 asteroids and other flying objects that are currently in orbit somewhat close to the Earth.  But financial constraints will not allow NASA to detect, monitor, catalog and characterize all of the NEOs like Congress requested two years ago -- it is more likely that NASA will have to focus only on the flying objects that pose a real threat to Earth.

To accomplish the plan enacted by Congress by 2020 would force NASA to use ground-based telescopes that are used by other research and space agencies; the likely creation of a dedicated observatory designed specifically for tracking NEOs; and NASA to launch a space craft that would monitor a safety cushion around the Earth.  The report estimates that all of these projects would cost more than $1 billion, which is a high price that NASA cannot afford.

The Pan-STARRS telescope in Hawaii is one tool that is being used by three UK universities to help locate possible Earth-threatening asteroids.  The powerful telescope is able to detect objects from 300m in diameter, which is large enough to have a strong impact on the Earth.


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RE: Sad
By fluxstar256 on 3/14/2007 9:33:02 PM , Rating: 1
I'm sorry, you're wrong.

CO2 may be good for plants and primodial goop, but CO2 IS harmful humans.

I suggest you stick a plastic bag on your head and breathe your own CO2 for a while to test it out.


RE: Sad
By masher2 (blog) on 3/15/2007 8:11:47 AM , Rating: 2
> "I'm sorry, you're wrong. CO2 may be good for plants and primodial goop, but CO2 IS harmful humans...

Do people not think before they post? CO2 is deadly to humans at a concentration of 100 thousand ppm. The current atmospheric CO2 level is 380 ppm, an infinestimal fraction of this. If we burnt every bit of oil, coal, and ever other carbon deposit on the planet, we still wouldn't reach the CO2 level during the Devonian, which was well over 3,000 ppm...a period in which plant and animal life both thrived, far more so than it does today.

Your own BREATH contains CO2 levels as high as 10,000 ppm, and a well-insulated and sealed house (which many people spend years of their life in) can easily have CO2 5-10 times the atmospheric level. Furthermore, a small amount of CO2 in the air is vital for humans and most mammals. Without it, the breathing reflex isn't properly triggered, and you're likely to die of apoxia.

Plant life depends utterly upon CO2 levels. It is airborne plant food...increasing it means faster, richer growth, and a more abundant biosphere.


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