A hassle has developed over the next NASA program. It
involves the first and the last American on the moon. As the last
Shuttle Mission is accomplished, the question is: where do we go
from here?
One answer: we make a sort of taxi shuttle that can take
folk to and from the orbiting space station.
But wait, comes the cry. We already got that in the Soyuz
vehicle that comes and goes. No need for another one as long as
we maintain relations with the Russians. Neil Armstrong, first
man on the moon, and Eugene Cernan, last man off the
place, told the Senate Commerce Committee that would be a
bad idea, wasteful and expensive.
President Obama’s science advisor encourages a “robotic”
landing on the moon or “other planetary body” to keep the program
in shape. Beneath it all, scientists are studying the potential
in asteroids — yes, asteroids. Lord knows there are plenty of
them — some 6,500 of the flying rocks, flying in a sort of loose
formation, some threatening one day to smack our earth. The idea
would be to send an astronaut crew to one of these rocks and
tether to it (it doesn’t have enough size or gravity to hold an
astronaut vehicle).
Could be some have water in them. Robots have successfully
landed on two so far — Eros and Itokawa. Putting humans there
would yield a lot more knowledge about the beginnings of our
system, the advocates of these rock hounds say. Besides, a trip
to the asteroid belt and back would take about half the time it
would take for a round-trip to Mars.
About 1,100 of these asteroids are classified as potential
dangers to earth. They come that close and they are whoppers, 150
meters or more in diameter. Enough to extinguish dinosaurs had
that not been done already. Getting up to one might yield some
thoughts on how to deflect it.
A lot of the bigger, potentially dangerous ones are
already catalogued but there’s a lot of mapping yet to do, given
the more than 6,500 flying around out there.
In coming months there will be more said about these rocks,
and those in government seeking funding may not have a
terribly tough job if they cry, “DUCK!”
Omar Fink | 5.25.10 @ 7:43AM
While it may be possible to select a nearby asteroid to visit that is closer than Mars, the inner edge of the main asteroid belt is at least twice as far away from the orbit of Earth than the orbit of Mars is from the orbit of Earth.
Earth = 1 AU (Astronomical Unit)
Mars = 1.5 AUs
main asteroid belt = 2 - 4 AUs
The main distance factor actually involves where in the orbital path each body is. When Mars is nearby, the difference between our orbits may be only 0.5 AU, but when Mars is on the opposite side of the Sun from us, the distance between us grows from 0.5 AU to 2.5 AU and the same principle applies to any individual asteroid targeted for a visit.
Al Adab| 5.25.10 @ 1:50PM
Unless we as a nation, having given the promise of space to mankind, are willing to accept that the future of humanity is Chinese speaking and non-western in belief, need to act decisivly to the cowardice of those who would turn their backs on what we accomplished.
How ironic that the Ming dynasty circa 1450 turned its back on the exploration of the worlds oceans and today, as we turn our back on the exploration of this new ocean, their successors are positioned to lead mankind into the future.
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