nasa news conference tomorrow alien life?
#21
Posted 2010-December-03, 09:05
George Carlin
#22
Posted 2010-December-03, 09:19
#23
Posted 2010-December-04, 23:28
#24
Posted 2010-December-05, 04:45
---
I xpect the next call will be tax it......
#25
Posted 2010-December-05, 14:58
USViking, on 2010-December-02, 10:49, said:
of a microbe in Lake Mono CA
"...which lives with levels of arsenic in its biology that were hitherto
believed impossible (and) significantly broaden(s) the possibility of
what life may be possible on other planets with different environments"
http://www.slashgear...-life-02117300/
http://www.timesonli...icle7040864.ece
I do not think NASA should be budgeted to search for new life forms
on Earth. It has plenty of work to do making sure its next Mars Rover
doesn't roll over or get stuck in some sand dune, and there are plenty
of Earth-bound biologists and biology departments who can perform
such work as NASA is now conducting at Mono Lake.
Unfortunately so many people are in love with the notion of Martian
and other bugs, shrubs, ETs, Little Green Men, etc etc etc that NASA
sees an opportunity for PR tease and hype, with consequent budgetary
support. Well, I am all in favor of the hard science of space exploration,
but I have a serious aversion to tease and hype, and I hope this source
of tease and hype at Mono Lake gets the plug pulled on it if Congress
ever goes on a real budget-cutting spree.
I could not agree more. The $467,000 the government spent on this useless research into life would have paid for at least two guidance fins of a drone missile that could have kept us safe from different-than-us lifeforms if properly guided and detonated.
#26
Posted 2010-December-05, 17:08
Winstonm, on 2010-December-05, 14:58, said:
Glad we are on the same page here.
We really do need to ensure ourselves a large supply of drone missiles
available for use against the Taliban and Al-Quaeda of the world.
If NASA wants to spend $476k (and not much more) on its not particularly
useful search for ET, then let that money be spent where ET is actually
supposed to reside- on such places as Mars.
#27
Posted 2010-December-05, 19:02
#28
Posted 2010-December-05, 20:19
Winstonm, on 2010-December-05, 19:02, said:
I see you are the kind of person who is inclined to turn any thread
on any subject into one of your favorite soap-box shrills.
I have been through this particular subject to the tune of probably
100s of posts on several political boards. I am tired of it, and I will
not take the bait to go into any more here.
Briefly though, I am not sure how much else besides drone attacks
I would approve of, or under what circumstances I might limit disclosure,
but counterterror is the area where I would place the fewest restaints
on our operations.
#29
Posted 2010-December-06, 05:07
Winstonm, on 2010-December-05, 19:02, said:
USViking, on 2010-December-05, 20:19, said:
on any subject into one of your favorite soap-box shrills.
you think?
#30
Posted 2010-December-06, 08:14
kenrexford, on 2010-December-02, 15:40, said:
But life-forms on such a diet might still be able to turn random water cooler threads into rant-floods about US politics, though.
#31
Posted 2010-December-08, 14:38
#33
Posted 2010-December-09, 18:07
luke warm, on 2010-December-08, 14:38, said:
Peer review complaints are in another thread.
#34
Posted 2010-December-09, 20:20
luke warm, on 2010-December-08, 14:38, said:
Thanks for the blurb, here's a CBC link to comments by the critic:
http://www.cbc.ca/te...s#ixzz17P6UT100
Some quotes:
Quote
Redfield described the study led by astrobiologist Felisa Wolfe-Simon as "lots of flim-flam, but very little reliable information..."
Redfield (said)...that the paper "doesn't present ANY convincing evidence that arsenic has been incorporated into DNA (or any other biological molecule).
Redfield said the methods used by the researchers were so crude that any arsenic they detected was likely from contamination...
She also questioned why the researchers analyzed the DNA while it was still in the gel, making the results more difficult to interpret: "No molecular biologist would ever do that."
Redfield also disagreed with the paper's conclusion that the bacteria had to rely on arsenic to build molecules such as DNA because there wasn't enough phosphate (a form of phosphorus) available in the samples with the lowest levels. Her arithmetic showed that in fact, there was enough phosphate to account for the amount of bacteria that grew...
"That shocked me," she said.
Redfield added that there was actually very little arsenic in the DNA of bacteria grown in an environment high in arsenic and low in phosphorus. In fact, the amount was only twice that of the cells grown without arsenic: "That's a level of difference that could be easily explained by very minor contamination..."
She suggested that perhaps the reviewers may not have had an expertise in microbiology. Another possibility is that the reviewers raised some concerns, but the editors of Science didn't think they were serious or were "motivated by the coup of getting this very high-profile article..."
#35
Posted 2010-December-12, 09:29
luke warm, on 2010-December-08, 14:38, said:
From NASA
Quote
#36
Posted 2010-December-12, 10:06
Winstonm, on 2010-December-12, 09:29, said:
isn't that the point? those who are doing the criticizing are saying there was no "... thorough and ruthless peer review ..."
#37
Posted 2010-December-12, 14:05
of non-conformance with scientific standards, or, to put it another way, of
unprofessional behavior.
In my opinion this serious charge needs to be addressed transparently and
immediately, and there are sure to be acceptable means available other than
exchange in peer reviewed scientific journals. Also, besides being too slow
to accomodate the needs of this issue, typical peer review is unacceptable due
to the anonymity of the reviewers: the point has been reached where both the
defendants and the public deserve to know who the judges are.
I also think there is some validity to the objection that with all its garish tease
and hype NASA itself stepped outside the peer review process which it is now
trying to use to hide behind.