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An international team of scientists who analyzed data from the Gamma Ray Spectrometer onboard NASA's Mars Odyssey reports new evidence for the controversial idea that oceans once covered about a third of ancient Mars.
As the sun dips lower in the Martian sky with each passing day, NASA's solar-powered Phoenix Mars Lander took time this week to send a postcard of sorts to scientists on Earth after more than three months studying the red planet. Phoenix beamed home a view of its trench-filled worksite after surpassing the 90-day mark of its initial mission to hunt for water ice buried beneath the barren arctic plains of Mars.
NASA's Phoenix Mars Lander may have already caught its first glimpse of Martian ice less than a week after arriving at its new red planet home.
When NASA's Phoenix Mars Lander sets down in the Martian arctic on Sunday, it will open a new, icy frontier for scientists back on Earth. Phoenix, a stationary lander set to make a planned May 25 descent to the Martian surface, is going to where no probe has gone before - the northern plains of Vastitas Borealis on Mars. "Ten years ago, you wouldn't have chosen this spot at all because it looks just like every other part of Mars," said Phoenix principal investigator Peter...
It's go time for NASA's Phoenix Mars Lander. After nearly 10 months speeding across 422 million miles (679 million km), the Phoenix spacecraft is just days away from plunging into the Martian atmosphere on Sunday to land near the north pole of Mars. "We've been working quite hard all the way along," said Deborah Bass, Phoenix's deputy principal investigator at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif.
This story was updated at 1:33 p.m.
These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, show a patch of water ice sitting on the floor of an unnamed crater near the Martian north pole.
- Small missiles, especially grape, canister, fragments of iron, and the like, when fired, as upon an enemy at close quarters.
- To fire mitraille at.