PASADENA, Calif. — NASA celebrated the precision landing of a rover on Mars and marveled over the mission’s first photographs Monday — grainy, black-and-white images of Martian gravel, a mountain at sunset and, most exciting of all, the spacecraft’s white-knuckle plunge through the red planet’s atmosphere.
Curiosity, a roving laboratory the size of a compact car, landed right on target late Sunday night after an eight-month, 352-million-mile journey.
Cheers and applause echoed through NASA’s Jet Propulsion Laboratory, and engineers hugged, high-fived and thrust their fists in the air after signals from space indicated the vehicle had survived the harrowing descent through Mars‘ pinkish atmosphere.
JPL Director Charles Elachi likened the reaction to Olympic athletes: “This team came back with the gold.”
Extraordinary efforts were needed for the landing because the rover weighs one ton, and the thin Martian atmosphere offers little friction to slow it down. Curiosity had to go from 13,000 mph to zero in seven minutes, unfurling a parachute, then firing rockets to brake. In a Hollywood-style finish, cables delicately lowered it to the ground at 2 mph.
At the end of what NASA called “seven minutes of terror,” the vehicle settled into place almost perfectly flat in the crater it was aiming for.
“We have ended one phase of the mission much to our enjoyment,” mission manager Mike Watkins said. “But another part has just begun.”
The nuclear-powered Curiosity will dig into the Martian surface to analyze what’s there and hunt for some of the molecular building blocks of life, including carbon.
It won’t start moving for a couple of weeks, because all the systems on the $2.5 billion rover have to be checked out. Color photos, panoramas and video will start coming in the next few days.
But first NASA had to use tiny cameras designed to spot hazards in front of Curiosity’s wheels. So early images of gravel and shadows abounded. The pictures were fuzzy, but scientists were delighted.
The photos show “a new Mars we have never seen before,” Mr. Watkins said. “So every one of those pictures is the most beautiful picture I have ever seen.”
In one of the photos from the close-to-the-ground hazard cameras, if you squinted and looked the right way, you could see “a silhouette of Mount Sharp in the setting sun,” said an excited John Grotzinger, chief mission scientist from the California Institute of Technology.
A high-resolution camera on the orbiting 7-year-old Mars Reconnaissance Orbiter, flying 211 miles directly above the plummeting Curiosity, snapped a photo of the rover dangling from its parachute about a minute from touchdown. The parachute’s design can be made out in the photo.
“It’s just mind-boggling to me,” said Miguel San Martin, chief engineer for the landing team.