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Recently,
NASA's LCROSS probe discovered beds of water - ice on the Moon - and in mass
quantities. This finding occurred on the lunar South Pole in a crater called
Cabeus. When the debris from the impact of the LCROSS probe was analyzed, the
signature of water was seen in both infrared and ultraviolet spectroscopic
measurements. Based on these measurements, it is estimated that there was
approximately 100-kg of water in the immediate view of NASA's instruments.
The
LCROSS discovery has led most scientists to believe that there must be more
water nearby. It is hypothesized that this water is probably left over from
ancient comets that hit the Moon billions of years ago. When melted, it could
be used to create rocket fuel - or for astronauts to drink. The discovery of lunar
water could save millions for NASA, considering that putting a pound of payload
on the Moon costs between $50,000 and $100,000.
Confirming Suspicions
Based
on detections from previous lunar missions, scientists have long suspected that
permanently-shadowed craters at the South Pole of the Moon could contain frozen
water. Water was detected on the Moon by a previous probe, but it was in very
small amounts and bound to the dirt and dust on the lunar surface. During the
investigation, water wasn't the only compound found in the debris, but the
identity of the other compounds has yet to be determined.
These
findings indicate that the Moon's poles may contain more data on both lunar
history and solar system history, because these permanently-shadowed areas are
extremely cold and trap things that encounter them. The recent LCROSS finding
could be ice that has been on the Moon for billions of years.
The Augustine Report and Beyond
Last
month's Augustine Report on the future of space travel, commissioned by NASA,
states that unless there is outside funding, President George W. Bush's plan of
sending astronauts to the Moon by 2020 and creating a Moon base, and then onto
Mars, will not happen. Very soon, President Barack Obama is expected to make a
historic decision that will affect the space program for decades to come. The LCROSS
finding will certainly put pressure on him when it comes to that decision. If
continuing to explore space is worth the expense, there may be more out there than
we expect.
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