Mars Radiation Environment Experiment
The Martian Radiation Experiment, or MARIE was designed to measure the radiation environment of Mars using an energetic particle spectrometer as part of the science mission of the 2001 Mars Odyssey spacecraft (launched on April 7, 2001). It was led by NASA's Johnson Space Center and the science investigation was designed to characterize aspects of the radiation environment both on the way to Mars and while it was in the Martian orbit.
Since space radiation presents an extreme hazard to crews of interplanetary missions the experiment was an attempt to predict anticipated radiation doses that would be experienced by future astronauts and it helped determine possible effects of Martian radiation on human beings.
Space radiation comes from cosmic rays emitted by our local star, the sun, and from stars beyond our solar system as well. Space radiation can trigger cancer and cause damage to the central nervous system. Similar instruments are flown on the Space Shuttles and on the International Space Station (ISS), but none have ever flown outside of Earth's protective magnetosphere, which blocks much of this radiation from reaching the surface of our planet.
Ironically, in the Autumn of 2003 after a series of particularly strong solar flares MARIE started malfunctioning, probably as a result of being exposed to the solar flare's intense blast of particle radiation. The instrument was never restored to working order.
Read more about Mars Radiation Environment Experiment: How The Instrument Works, MARIE Specifications, Results
Famous quotes containing the words mars, radiation, environment and/or experiment:
“The sword’s a cross; thereon He died:
On breast of Mars the goddess sighed.”
—William Butler Yeats (1865–1939)
“There are no accidents, only nature throwing her weight around. Even the bomb merely releases energy that nature has put there. Nuclear war would be just a spark in the grandeur of space. Nor can radiation “alter” nature: she will absorb it all. After the bomb, nature will pick up the cards we have spilled, shuffle them, and begin her game again.”
—Camille Paglia (b. 1947)
“We learn through experience and experiencing, and no one teaches anyone anything. This is as true for the infant moving from kicking to crawling to walking as it is for the scientist with his equations. If the environment permits it, anyone can learn whatever he chooses to learn; and if the individual permits it, the environment will teach him everything it has to teach.”
—Viola Spolin (b. 1911)
“America is the most grandiose experiment the world has seen, but, I am afraid, it is not going to be a success.”
—Sigmund Freud (1856–1939)