ARTICLES MODERN

Mission managers said Monday that they have not heard from NASA spacecraft for a week and they thought it had fallen, probably for the good of peace.
“At this time, we are quite convinced that the vehicle is not for us to use,” said Barry Goldstein, the project manager. “We are actually ceased operations, declaring an end to the operations of mission at this time.”
With the outbreak of winter and declining power generated by Phoenix’s solar panels, managers knew countries would die soon, but he hoped to get more than a few weeks time data.
But on Oct. 27, just after Phoenix finished last major experiment analysis of Martian soil, a storm hit unexpectedly dust. Batteries, already reduced to running the experiment, run energy.
Put the first spacecraft itself into a low-energy “safe mode”, and then fell silent. It goes on itself, October 30, but the dust still swirling, was never able to recharge its batteries. Each day, the solar panels would generate electricity for the spacecraft enough to wake up, but then again dry batteries.

The last communication came on Nov. 2. He said Mr. Goldstein orbiting spacecraft would continue to listen for a few weeks more faint chance that Phoenix defies their expectations.

Phoenix landed in May to examine Arctic northern plains, and $ 428 million mission, originally scheduled for last three months, was extended twice

“I’m just pleased to death that I was able to do here,” said Peter H. Smith of the University of Arizona, principal investigator of the mission. The spacecraft to achieve all its major objectives, but some scientists remained unfinished. Martian soil proved to be extremely clumpy, spacecraft and had trouble getting through recurring evidence gratings spacecraft in the laboratory apparatus.

Dr. Smith admitted disappointment that a sample from one of the trenches that Phoenix has been successful dig was never analyzed. “I took it all the way up to instrument and even tried pressing it down,” said Dr. Smith. “I would not go inch”

But Dr. Smith stressed what he did discover Phoenix. It confirmed a layer of ice below, not far from the surface. She found a clays and carbonates, suggesting that might be liquid water may be present in the last several millennia. It found arctic soil is alkaline, acidic that has not been observed in other parts of Mars. It is also perchlorates, a class of chemicals in high concentrations can be toxic to life, but which may also serve as a source of food for some microbes.The spacecraft took 25,000 photos, including panoramas landing and images of microscopic particles of dust.

“It is truly an Irish wake, not a funeral you are looking for a forward,” said Douglas McCuiston, director of the Mars Exploration Program at NASA headquarters. “NASA what I wanted from this mission.”

Data may still reveal the presence of carbon molecules on the basis of which could be the building blocks of life, said Dr. Smith, and that the region could at least occasionally, be suitable for life. Phoenix was designed not to look directly for signs of life. Dr. Smith said scientists began the writing of scientific papers describing their results.

In the following months, when the sun disappears entirely in the northern plains, will fall to temperatures of minus-240 to minus-300 degrees Fahrenheit, and Phoenix will become encased within the carbon dioxide ice. When he returned in the spring, NASA plans to try again revitalization of Phoenix, but the hope is that the spacecraft’s electronics will not survive long, deep freeze.