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It is official, there’s ice in Martian soil

LOS ANGELES: The Phoenix spacecraft has tasted Martian water for the first time, scientists have reported.

By melting icy soil in one of its lab instruments, the robot confirmed the presence of frozen water lurking below the Martian permafrost. Until now, evidence of ice in Mars’ North Pole region has been largely circumstantial.

In 2002, the orbiting Odyssey spacecraft spied what looked like a reservoir of buried ice. After Phoenix arrived, it found what looked like ice in a hard patch underneath its landing site and changes in a trench indicated some ice had turned to gas when exposed to the sun.

Scientists popped open champagne when they received confirmation on Wednesday that the soil contained ice. “We’ve now finally touched it and tasted it,” said William Boynton of the University of Arizona at a news conference in Tucson on Thursday. “From my standpoint, it tastes very fine,” he added.

Phoenix landed on Mars on May 25 on a three-month hunt to determine if it could support life. It is conducting experiments to learn whether the ice ever melted in the planet’s history that could have led to a more hospitable environment. It is also searching for the elusive organic-based compounds essential for simple life forms to emerge. The ice confirmation earlier this week was accidental. After two failed attempts to deliver ice-rich soil to one of Phoenix’s eight lab ovens, researchers decided to collect pure soil instead. Surprisingly, the sample was mixed with a little bit of ice, said Mr. Boynton.

The latest scientific finding is the first piece of good news for a mission that has been dogged by difficulties in recent weeks.

The space agency announced it would extend the mission for an extra five weeks until the end of September, adding $2 million more to the $420 million price tag, said Michael Meyer, Mars chief scientist at NASA headquarters. The team also released a colour panorama of Phoenix’s landing site using more than 400 images taken by Phoenix. The portrait revealed a Martian surface that was coated with dust and dotted with rocks. — AP

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