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Water found in tiny beads from the moon | |
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Gizmorama - Water found in tiny beads from the moon
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Good Morning,
Today, I have such interesting articles for you. The first
article is so... incredible. I just can't believe it. I
don't want to spoil for you. You have to check it out.
Until Tomorrow,
Erin
Questions? Comments? Email me at: Email your comments
P.S. You can discuss this issue or any other topic in the new
Gizmorama forum. Check it out here...
http://archives.gophercentral.com/forum/forums/forum-view.asp?fid=23
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Water found in tiny beads from the moon
CLEVELAND - U.S. researchers said they've discovered water
in tiny beads of volcanic glass collected from two Apollo
missions to the moon. Jim Van Orman, a professor in the
geological sciences department at Case Western Reserve
University, said the findings suggest the water came from
the moon's interior and was delivered to the surface
through volcanic eruptions. The research team, which
included scientists from Brown University, Carnegie
Institution for Science and Case Western Reserve, said
finding water on the moon's surface could have a big effect
on any future plans for long-term manned lunar presence
or using the moon as a launching point for explorations
further into space. "Water contains the essential
ingredients used for rocket fuel," Van Orman said in a
statement. "Certainly, if there is ice on the moon's polar
caps, that could be used. But if there is water in the
rocks --and as much as our studies infer-- that is another
resource that could be tapped." The findings are published
in the journal Nature.
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Cosmonauts remove explosive bolt in space
CAPE CANAVERAL, Fla. - Two space station cosmonauts
removed an explosive bolt from their Russian descent
capsule Thursday in a spacewalk meant to smooth out
their landing. The risky six-hour operation by inter-
national space station Cmdr. Sergei Volkov and lead
flight engineer Oleg Kononenko was a success, U.S. and
Russian space officials said. The cosmonauts cut away
insulation around the live, explosive bolt. They then
removed the bolt, which is part of the capsule's re-
entry apparatus, slid it into a blast-proof container
and brought it back into the station, NASA TV showed.
U.S. astronaut Greg Chamitoff remained inside the Soyuz
so he could open a hatch for his crew mates in case of
emergency. The repair was intended to ensure the Russian
crew's safe return to Earth in October. The last two
Soyuz capsules returned to Earth in a hurtling "ballistic"
descent that forced those aboard to endure extremely high
G-forces. The Russian Federal Space Agency believes the
bolt -- one of five -- failed to explode on the previous
two reentries, preventing a module from separating from
the capsule. This threw off the aerodynamics and plunged
the capsule through the atmosphere like a huge rock. The
bolt's explosive force is roughly equivalent to that of
an M-80 firecracker, NASA said.
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Evolutionary answer to flatfish eye enigma
CHICAGO - Fossils of two ancient flatfish prove the fish's
asymmetrical, one-sided eye arrangement is a result of
evolution, a study published Thursday said. The highly
specialized group of bottom-feeding fish -- which include
sole, plaice, turbot, flounder and halibut -- originally
had its eyes on both sides of its head, but one eye
migrated over millions of years, 28-year-old University
of Chicago doctoral student Matt Friedman said in an
article published in the scientific journal Nature. Until
now, scientists have largely assumed the flatfish eye
arrangement must have arisen suddenly because they could
not see a benefit if it took millions of years, the
Chicago Tribune reported. Even Charles Darwin had trouble
answering critics who used flatfish eyes as an argument
against his evolutionary theory after he published it in
1859, the newspaper said. But Friedman found several
examples of different types of flatfish -- including a
50 million-year-old fossil recovered Verona,Italy -- that
clearly showed one eye socket near the top of the skull,
suggesting the eyes were "in transit" to the other side
of the face, Friedman said. In addition, a misclassified
fossil that turned out to be an entirely new flatfish
genus showed eyes clearly is in the transitional stage,
he said.
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