* Water may still flow on Mars, scientists say:
NASA photos have revealed bright new deposits in two
gullies on Mars.
http://www.world-science.net/othernews/061206_mars-water.htm
* Hysteria is real, study finds:
Hitherto unexplained cases of partial paralysis or
numbness may have a physical cause after all,
scientists say.
http://www.world-science.net/othernews/061210_hysteria.htm
* Drastic speedup in Arctic melting forecast:
Arctic summers could be nearly ice-free by 2040, new
research suggests -- much sooner than previous
forecasts have predicted.
http://www.world-science.net/othernews/061210_arctic.htm
* Galactic evolution both "nature" and "nurture":
Galaxies evolve as a result of influences from their
surroundings, astronomers have found.
http://www.world-science.net/othernews/061206_galaxy-evolution.htm
Special: focus on laughter
* Why laughter is contagious:
You can catch it without asking for it, or even
necessarily wanting it. Now, scientists say they
have an idea of why.
http://www.world-science.net/othernews/061212_laugh.htm
* Humor beats disease, researchers find:
Scientists are reporting what they call most direct
evidence yet that ability to laugh saves lives.
http://www.world-science.net/othernews/061212_humor.htm
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