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Mars' Atmosphere

WATCH: Launch Of NASA's Newest Planetary Probe

The Huffington Post | Meredith Bennett-Smith | Posted 11.18.2013 | Science

The countdown for NASA's Mars probe MAVEN is under way in Cape Canaveral, Fla., as the space agency prepares to launch its newest robotic explorer on ...

WATCH: Poems, Art Projects To Tag Along On New Probe's 10-Month Trip

AP | MARCIA DUNN | Posted 11.17.2013 | Science

CAPE CANAVERAL, Fla. (AP) — NASA hopes its newest Mars spacecraft lives up to its know-it-all name. The robotic explorer called Maven is due to bla...

Strange Space Rock Reveals How Planet Lost Atmosphere

Space.com | Becky Oskin | Posted 10.23.2013 | Science

The atmosphere of Mars may not have escaped into space billions of years ago, scientists say. Instead, the bulk of Mars' carbon dioxide gas could be l...

Mars Methane Mystery Deepens

Space.com | Charles Q. Choi | Posted 09.19.2013 | Science

NASA's Mars rover Curiosity has revealed no trace of methane, a potential sign of primitive life, on the Martian surface, contradicting past evidence...

Rover Samples Martian Air, Gets Mild Surprise

AP | ALICIA CHANG | Posted 07.19.2013 | Science

LOS ANGELES -- The Curiosity rover has tasted Mars' air: It's made mostly of carbon dioxide with hints of other gases. The measurements by the most a...

WATCH: Rover's Huge Parachute Flaps In Martian Breeze

Melissa Cronin | Posted 04.05.2013 | Science

Scientists have spotted new activity on Mars -- but it's not extraterrestrial life. Instead, NASA's Mars Reconnaissance Orbiter has sent back imag...

Ancient Rock Helps Unlock Secret Of Planet's Past

Posted 05.10.2012 | Science

By: SPACE.com Staff Published: 05/09/2012 06:45 PM EDT on SPACE.com A new look at an ancient volcanic blast on Mars suggests that the Red Planet...

NASA Orbiter Yields Big Surprise About Sand Dunes On Mars

Posted 05.10.2012 | Science

By: Nola Taylor Redd Published: 05/09/2012 01:15 PM EDT on SPACE.com Towering sand dunes on Mars, once thought to be ancient and unchanging, are...