SCIENCE IN THE NEWS DAILY
Mars Lander Fills Test Oven with Pinch of Soil
The Phoenix Mars Lander has successfully filled its scientific oven with clumpy Martian soil, and scientists expect to close the door and begin their analysis within a few days.
The lander had trouble getting the oven to fill because the soil clods refused to sift through a screen over the oven's opening. After repeated attempts and a last try at vibrating the screen, they succeeded in coaxing soil through the screen and into the oven.
The tiny oven is one of eight aboard the Phoenix Mars Lander. The high-temperature ovens are part of a key scientific instrument that will analyze Martian ice and soil and determine whether organic compounds, the building blocks of life, are present.
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PODCASTS: Expanding With the Cosmos
Using the Atacama Cosmology Telescope (ATC), a 6.5-meter microwave collector in Chile, cosmologists are piecing together the early history of the known universe. In an exclusive American Scientist interview, Arthur Kosowsky—a member of the ATC team and a professor in the Department of Physics and Astronomy at the University of Pittsburgh—discusses how he is using ATC to reach back in time billions of years to search for gravitational waves that could verify inflation and reveal unprecedented details about how the cosmos was born.
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