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Sep. 29th, 2009
A Little Less Mystery in the Migration of Eels
By HENRY FOUNTAIN
Published: September 28, 2009
The European eel spends most of its life in rivers and lakes, but at some point it heads downstream to the ocean. More
It's the tiny bubbles...
Sep. 29th, 2009 01:42 am
Flavor and Aroma Rise in Champagne Bubbles
By HENRY FOUNTAIN
Published: September 28, 2009
A tiny bubble can do a lot of work. In the ocean, for example, rising air bubbles in the surf drag certain compounds to the surface. These compounds, called surfactants, have a water-loving end (which stays in the water) and a water-avoiding end (which stays inside the bubble); when the bubbles reach the surface and pop, the surfactants are released. The effect is to concentrate these compounds in the air in the vicinity of the surf. More
NASA's Mars Reconnaissance Orbiter took images of a fresh, 6 meter wide crater on Mars on Oct. 18, 2008, left, and on Jan. 14. The impact exposed water ice from below the surface. The change between the earlier image to the later one resulted from some of the ice sublimating away during the Martian northern-hemisphere summer, leaving behind dust that had been intermixed with the ice.
By KENNETH CHANG
Published: September 28, 2009
If, in 1976, NASA’s Viking 2 lander had been able to dig about four inches deeper into Mars, it would quite possibly have made an important and surprising discovery: water ice far from the polar regions and not far below the surface. More
Long Life?
Sep. 29th, 2009 01:49 amQuest for a Long Life Gains Scientific Respect
By NICHOLAS WADE
Published: September 28, 2009
By NICHOLAS WADE
Published: September 28, 2009
BOSTON — Who would have thought it? The quest for eternal life, or at least prolonged youthfulness, has now migrated from the outer fringes of alternative medicine to the halls of Harvard Medical School. More