PASADENA, Calif. — With the rover Curiosity’s dramatic landing
accomplished, testing of its communication and power systems began Monday as
NASA worked to understand exactly where its vehicle had landed and how it
withstood its 354 million-mile journey to Mars.
NASA scientists believe the one-ton rover landed on bedrock in the
3.5 billion-year-old Gale Crater and is facing the distant crater wall,
believed to be about three miles high. A mountain in the crater will be the
focus of the mission because its exposed rock faces are expected to provide
clues about the area’s physical history and whether life’s building blocks ever
existed there.
In the aftermath of the high-precision landing, space-exploration
advocates embraced Curiosity as proof of American ambition and prowess.
“If anybody
has been harboring doubts about the status of U.S. leadership in space, well,
there’s a one-ton, automobile-size piece of American ingenuity, and it’s
sitting on the surface of Mars right now,” presidential science adviser John P.
Holdren said at a news conference after the landing.
Curiosity, called “the mission of the decade” by NASA officials,
will search for the building blocks of extraterrestrial life and investigate
how Mars turned from a wet and warm planet into a dry and cold one. The
sophisticated instruments used on the mission could hasten the day when humans
fly to Mars.
And the two-year mission could draw interest for years, inspiring
young people to go into science the way the Apollo moon program did in the
1960s and 1970s, officials said.
“Experiencing
that remarkably complex but perfect landing, and then watching the rover in the
months ahead, can’t help but excite young people,” said Jean-Lou Chameau,
president of the California Institute of Technology, which operates NASA’s Jet
Propulsion Laboratory. JPL is managing the mission.
President Obama hailed the landing as “an unprecedented feat of
technology that will stand as a point of national pride far into the future. It
proves that even the longest of odds are no match for our unique blend of
ingenuity and determination.”
There have been seven successful landings on Mars, all by NASA, but
Curiosity is by far the most technically sophisticated — and expensive. Its $2.5
billion price tag has drawn some criticism.
But after nailing the most difficult planetary landing ever, NASA
and Obama administration officials appear to believe the dynamic has changed.
After the landing, NASA Administrator Charles Bolden told a cheering crowd that
the mission as a whole cost the equivalent of a single movie ticket for
everyone in the United States. “And this is a movie I think people want to
see,” he said.
Sen. Kay Bailey Hutchison (R-Tex.) called the first images
“breathtaking.”
“The soft
landing of the Curiosity rover on Mars is a testament to NASA’s engineering
superiority,” she said. “More importantly, it serves as the most recent and
best example of why it is so important for us to continue to invest in
deep-space exploration. By committing to expand the horizons of exploration, we
guarantee new discoveries and new applications from all we learn.”
The landing could not come at a more opportune time for NASA, which
is facing significant budget cuts. Some of the largest budget hits are to the
Mars and planetary sciences programs, cuts that many now say could and should
be scaled back.
The United States now has two active rovers on the planet and two
orbiters, a high point for the nation’s presence on or around Mars.
Now that NASA’s rover Curiosity is safe on the surface of Mars, the
robot will start its scientific investigation at Gale Crater. The roving
laboratory is equipped with a full array of instruments aimed to determine if
the Red Planet was ever capable of support ing life.
While the landing provided high drama and a look at the
highest-quality, made-in-America technology and expertise, the mission has only
begun, and soon the scientists will begin their work. More than 300 of them
gathered at JPL for the landing, as anxious as the engineers about the rover’s
fate.
Curiosity’s overall mission is to search for the building blocks of
extraterrestrial life on Mars and to identify habitats where it may once have
flourished. The Gale Crater landing site was selected because orbiting satellites
have determined it was once covered in water and still shows a large “alluvial
fan,” where river water or meltwater once ran.
In addition, it is known to contain clays and minerals that can be
formed only in water — the kind of terrain that could house and preserve the
carbon-based organic compounds that are essential to life as we know it.
Curiosity also will be providing images and videos of a type and
quality never seen before. The first photos were primitive black-and-white
fisheye images taken by the hazard cameras at the bottom of the vehicle, used
to look for potentially harmful boulders. But future pictures will be in
high-definition color, and some will be taken from Mount Sharp — the
three-mile-high mountain in the center of the crater that Curiosity will climb
in the months ahead.
The image of Curiosity’s descent was taken by the High Resolution
Imaging Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance
Orbiter. In the photo, the Curiosity rover was still connected to its
51-foot-wide parachute as it descended toward its landing site at Gale Crater.
“If HiRISE
took the image one second before or one second after, we probably would be
looking at an empty Martian landscape,” said Sarah Milkovich, HiRISE
investigation scientist at JPL. She said the team had been preparing to take
the photo since March and finally uploaded commands to the satellite only 72
hours prior to the landing.
At a JPL news conference Monday, mission manager Mike Watkins said
“we are a ‘go’ for all plans” for first-day activities. He described them as
“kind of boring,” including system checks to make sure the rover is fully
operational. The first order of business: making sure communications back to
Earth are healthy.
Quite a change after the jubilation and triumph of the early Monday
landing but necessary for the next steps forward.
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