Nasa's Curiosity rover successfully lands on Mars

 

The reaction from the Nasa control room as the rover landed

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The US space agency has just landed a huge new robot rover on Mars.

The one-tonne vehicle, known as Curiosity, was reported to have landed in a deep crater near the planet's equator at 06:32 BST (05:32 GMT).

It will now embark on a mission of at least two years to look for evidence that Mars may once have supported life.

A signal confirming the rover was on the ground safely was relayed to Earth via Nasa's Odyssey satellite, which is in orbit around the Red Planet.

The success was greeted with a roar of approval here at mission control at the Jet Propulsion Laboratory (JPL) in Pasadena, California.

Picture from Curiosity rover The first pictures from Mars began to be fed back immediately; high-resolution images will come later

Within minutes, the robot was returning its first low-resolution images - showing us its wheels and views to the horizon. A first colour image of Curiosity's surroundings should be returned in the next couple of days.

Engineers and scientists who have worked on this project for the best part of 10 years punched the air and hugged each other.

The rover's Twitter feed announced: "I'm safely on the surface of Mars. GALE CRATER I AM IN YOU!!!"

The descent through the atmosphere after a 570-million-km journey from Earth had been billed as the "seven minutes of terror" - the time it would take to complete a series of high-risk, automated manoeuvres that would slow the rover from an entry speed of 20,000km/h to allow its wheels to set down softly.

The day I watched Curiosity being built in a clean room at Nasa's Jet Propulsion Laboratory in Pasadena last year, the rover's six wheels were lying on one work bench while the chassis stood on another and it was hard to believe the white-suited engineers could make sense of the maze of tubes and cabling.

But what they've created now stands on the red soil of Mars - and it's in one piece. In the hallway of a JPL building we were shown a full-size replica. Walking around it made me realise something difficult to grasp from the pictures and video: this is a beast of a machine, a kind of cosmic Humvee with instruments instead of weapons.

Sometimes Nasa public relations can appear bragging. Today it feels justified. Curiosity is all set to discover something remarkable about our strangest neighbour.

The Curiosity team had to wait 13 tense minutes for the signals from Odyssey and the lander to make their way back to Earth.

Data suggested the vehicle had hit the surface of Mars at a gentle 0.6m/s.

"It looked at least with my eyeball that we landed in a nice flat spot. Beautiful," said Adam Steltzner, who led the descent operation.

The JPL director, Charles Elachi, added: "Tonight was a great drama that was played. I felt like I was in an adventure movie but I kept telling myself this is real; and what a fantastic demonstration of what our nation and our agency can do."

That sense of national pride was picked up by US President Barack Obama's chief science adviser, John Holdren.

"Landing the Mars Science Laboratory rover Curiosity on the Red Planet was by any measure the most challenging mission ever attempted in the history of planetary exploration," he said.

"And if anyone has been harbouring doubts about the status of US leadership in space, well there's a one tonne automobile-sized piece of American ingenuity sitting on the surface of the Red Planet right now."

Curiosity - Mars Science Laboratory

Rover (Nasa)
  • Mission goal is to determine whether Mars has ever had the conditions to support life
  • Project costed at $2.5bn; will see initial surface operations lasting two Earth years
  • Onboard plutonium generators will deliver heat and electricity for at least 14 years
  • 75kg science payload more than 10 times as massive as those of earlier US Mars rovers
  • Equipped with tools to brush and drill into rocks, to scoop up, sort and sieve samples
  • Variety of analytical techniques to discern chemistry in rocks, soil and atmosphere
  • Will try to make first definitive identification of organic (carbon rich) compounds
  • Even carries a laser to zap rocks; beam will identify atomic elements in rocks

This is the fourth rover Nasa has put on Mars, but its scale and sophistication dwarf all previous projects.

Its biggest instrument alone is nearly four times the mass of the very first robot rover deployed on the planet back in 1997.

Curiosity has been sent to investigate the central mountain inside Gale Crater that is more than 5km high.

It will climb the rise, and, as it does so, study rocks that were laid down billions of years ago in the presence of liquid water.

The vehicle will be scouring Mount Sharp in the crater's centre looking for evidence that past environments could have favoured microbial life.

It is a region that Curiosity project scientist John Grotzinger told the BBC's Horizon programme reads like a "book about the early environmental history of Mars".

Scientists warn, however, that this will be a slow mission - Curiosity is in no hurry.

For one thing, the rover has a plutonium battery that should give it far greater longevity than the solar-panelled power systems fitted to previous vehicles.

"People have got to realise this mission will be different," commented Steve Squyres, the lead scientist of the Opportunity and Spirit rovers put on the surface in 2004.

"When we landed we only thought we'd get 30 sols (Martian days) on the surface, so we had to hit the ground running. Curiosity has plenty of time," he told the BBC.

Initially, the rover is funded for two Earth years of operations. But many expect this mission to roll and roll for perhaps a decade or more.

Join Jonathan Amos for a special Discovery programme on Curiosity from JPL on the BBC World Service at 19:30 BST, Monday. The programme will be available for download after broadcast.

Mars maps
Mars rover (Nasa)
  • (A) Curiosity will trundle around its landing site looking for interesting rock features to study. Its top speed is about 4cm/s
  • (B) This mission has 17 cameras. They will identify particular targets, and a laser will zap those rocks to probe their chemistry
  • (C) If the signal is significant, Curiosity will swing over instruments on its arm for close-up investigation. These include a microscope
  • (D) Samples drilled from rock, or scooped from the soil, can be delivered to two hi-tech analysis labs inside the rover body
  • (E) The results are sent to Earth through antennas on the rover deck. Return commands tell the rover where it should drive next

Jonathan.Amos-INTERNET@bbc.co.uk and follow me on Twitter

 

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  • rate this
    +12

    Comment number 1080.

    If there is one great thing the US have done for mankind it is to help us reach out and understand the universe around us. The prospect of discovering traces that life once existed on Mars is very exciting.

    To those people who say it is a waste of money, there are much bigger wastes of money and this mission may could help our understanding of life.

  • rate this
    -11

    Comment number 1077.

    Whilst I wish this mission every success I cannot help but wonder if the money would not be better used on our planet.
    Homeless families living in storm drains under Las Vegas, people walking around with tooth aches and requiring simple routine operations all for the lack of money. Come on lets get it right here before we start exploring other galaxies.

  • rate this
    +7

    Comment number 916.

    Although I am not a scientist I was enthralled by the thought of a machine landing
    on the Red Planet. Watched the landing on T.V.it was fantastic. Well done to all the N.A.S.A. team.

  • rate this
    -102

    Comment number 791.

    This is a shocking waste of money.

    People are dying becuase they cannot get hospital treatment or they cannot get any food. And the republican govenement have wasted billions on a vanity project like this.

  • rate this
    +79

    Comment number 563.

    Endeavours like this are what bring out the best in human beings, working together with one unified goal - to make something amazing happen that we didn't know we could do. Today it was an innovative landing on Mars. And when we succeed it lifts our spirits and unifies us in our quest to know. So you have to see with better eyes than fear and hate. Life seeks to expand itself, and we are life.

 

Comments 5 of 18

 

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