Planets, Mars | featured news

As big as a car and as well-equipped as a laboratory, NASA's newest Mars rover blows away its predecessors in size and skill. Nicknamed Curiosity and scheduled for launch on Saturday, the rover has a 7-foot arm tipped with a jackhammer and a laser to break through the Martian red rock. What really makes it stand out: It can analyze rocks and soil with unprecedented accuracy. "This is a Mars scientist's dream machine," said NASA Jet Propulsion Laboratory's Ashwin Vasavada, the deputy project scientist. Once on the red planet, Curiosity will be on the lookout for organic, carbon-containing compounds. While the rover can't actually detect the presence of living organisms, scientists hope to learn from the $2.5 billion, nuclear-powered mission whether Mars has - or ever had - what it takes to nurture microbial life.

Science editor Alan Boyle's Weblog: The end of a 520-day simulated space mission marks one more step in a succession of make-believe trips to Mars, leading up to the real thing.

The first rock a NASA rover looked at when it arrived at a crater on Mars was unlike any looked at on the planet before, scientists said... And the first rock it looked at has already opened a new chapter in the study of Mars, NASA scientists said Thursday. On a telephone news conference, mission scientists giddily described that rock: full of zinc and bromine, elements that, at least for rocks on Earth, would be suggestive of geology formed with heat and water.

NASA's surviving Mars rover Opportunity has reached the rim of a 14-mile-wide crater where the robot geologist will examine rocks older than any it has seen in its seven years on the surface of the red planet, scientists said Wednesday....

US and European efforts to send joint missions to Mars in 2016 and 2018 are slowed by an inability on the part of the Americans to provide a full financial commitment to the projects.

The crew of a simulated international Mars mission took their first steps on an indoor Red Planet landscape on Monday, marking the halfway point in an ambitious 520-day isolation experiment to test the strains of interplanetary travel.

NASA's next-generation rover mission to the surface of Mars needs more money – again. Nine months before the scheduled launch, the space agency says the mission has burned through its reserves and needs another $82 million to complete testing before liftoff.

Towards the end of 2011 a large and hugely expensive robotic rover called Curiosity is due to blast off for Mars from Cape Canaveral. If it makes it safely to the planet’s surface in August 2012 one of the first things it will do is sniff the air. Its creators, back on Earth, will be straining to see if that air carries a whiff of methane.

Invoking the spirit of "Star Trek" in a scholarly article entitled "To Boldly Go," two scientists contend human travel to Mars could happen much more quickly and cheaply if the missions are made one-way. They argue that it would be little different from early settlers to North America, who left Europe with little expectation of return.

Thirty-four years after NASA's Viking missions to Mars sent back results interpreted to mean there was no organic material - and consequently no life - on the planet, new research has concluded that organic material was found after all.