Spiral Troughs on Mars

Onset and migration of spiral troughs on Mars revealed by orbital
radar pp450-453
A pinwheel array of deep troughs has been one of the most perplexing
features of the north polar layered deposits on Mars. Many ideas have
been put forward about how it formed, but there is as yet no
consensus. Here, penetrating radar has been used to rule out
erosional cutting as a mechanism for the formation of the array.
Instead, it is concluded that the troughs are largely depositional
in origin, and have migrated to the poles and upwards in elevation
over the past two million years or so.
Isaac B. Smith and John W. Holt
doi:10.1038/nature09049

Smallpox eradication leads in increase in HIV infections

This at least is the speculation of scientists, detailed at the link below:
http://news.bbc.co.uk/2/hi/health/8686750.stm

Canvas found in trash might sell for a million

http://www.museum-security.org/?p=3877&utm

This story is reprinted below from museumsecurity.org since I am not confident about the link working.

Stolen painting worth $1 million found in trash

April 28, 2010 – 21:55Stolen painting worth $1 million found in trash
http://today.msnbc.msn.com/id/21435335/
Woman recovered 1970 artwork by Mexican artist Rufino Tamayo
“I know nothing of modern art but it didn’t seem right for any piece of art to be discarded like that,” Elizabeth Gibson said after finding “Tres Personajes.”
updated 10:25 a.m. ET Oct. 23, 2007
NEW YORK – A painting stolen more than 20 years ago was found lying in trash along a street, and now it could fetch up to $1 million at an auction.
Elizabeth Gibson didn’t know anything about the brightly colored work she spotted on her morning walk four years ago on Manhattan’s upper West Side, but she said she took it home because “it had a strange power.”
“I know nothing of modern art but it didn’t seem right for any piece of art to be discarded like that,” Gibson told the Sotheby’s auction house.

It turned out that it was a 1970 painting by Mexican artist Rufino Tamayo, titled “Tres Personajes” (Three People), and had been stolen more than 20 years ago.
Gibson said she learned of the work’s worth when her research led her to the Web site of “Antiques Roadshow FYI,” a companion program to the PBS show “Antiques Roadshow.”
Sotheby’s expert August Uribe had featured the painting on “Antiques Roadshow FYI” after it was stolen.

Sotheby’s says “Tres Personajes” is an important work that represents the artist’s mature period.
The painting was returned to the original owners, who wish to remain anonymous.
The New York Times said the couple paid $55,000 for it. Sotheby’s says it could bring up to $1 million when it is sold at its Latin American Art auction on Nov. 20.
© 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Read more: http://today.msnbc.msn.com/id/21435335/#ixzz0mQVONDRL