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China lands its Zhurong rover on Mars | China lands its Zhurong rover on Mars |
(32 minutes later) | |
Artwork of the Zhurong robot: It's a daunting prospect landing on Mars | Artwork of the Zhurong robot: It's a daunting prospect landing on Mars |
China has successfully landed a spacecraft on Mars, state media announced early on Saturday. | China has successfully landed a spacecraft on Mars, state media announced early on Saturday. |
The six-wheeled Zhurong robot was targeting Utopia Planitia, a vast terrain in the planet's northern hemisphere. | The six-wheeled Zhurong robot was targeting Utopia Planitia, a vast terrain in the planet's northern hemisphere. |
The vehicle used a combination of a protective capsule, a parachute and a rocket platform to make the descent. | The vehicle used a combination of a protective capsule, a parachute and a rocket platform to make the descent. |
The successful touchdown is a remarkable achievement, given the difficult nature of the task. | The successful touchdown is a remarkable achievement, given the difficult nature of the task. |
Only the Americans have really mastered landing on Mars until now. All other countries that have tried have either crashed or lost contact soon after touchdown - until now. | |
Chinese President Xi Jinping congratulated the team's "outstanding achievement" in a special message. | Chinese President Xi Jinping congratulated the team's "outstanding achievement" in a special message. |
"You were brave enough for the challenge, pursued excellence and placed our country in the advanced ranks of planetary exploration," he said. | "You were brave enough for the challenge, pursued excellence and placed our country in the advanced ranks of planetary exploration," he said. |
The probe officially landed at 07:18 on Saturday, Beijing time (Friday 23:18 GMT), according to state media. | The probe officially landed at 07:18 on Saturday, Beijing time (Friday 23:18 GMT), according to state media. |
It took 17 minutes to unfold its solar panels and send a signal back to Earth. | It took 17 minutes to unfold its solar panels and send a signal back to Earth. |
China succeeds in putting a probe in Mars orbit | China succeeds in putting a probe in Mars orbit |
UAE space mission returns first image of Mars | UAE space mission returns first image of Mars |
Remarkable photo of Mars rover during landing | Remarkable photo of Mars rover during landing |
Zhurong, which means God of Fire, was carried to Mars on the Tianwen-1 orbiter, which arrived above the planet in February. | Zhurong, which means God of Fire, was carried to Mars on the Tianwen-1 orbiter, which arrived above the planet in February. |
The time since has been spent surveying Utopia, taking high-resolution images to pinpoint the safest place to put down. | The time since has been spent surveying Utopia, taking high-resolution images to pinpoint the safest place to put down. |
The aim with all such ventures is to pick a spot, as far as possible, that is devoid of imposing craters and large boulders. | The aim with all such ventures is to pick a spot, as far as possible, that is devoid of imposing craters and large boulders. |
This model shows Zhurong to have a similar look to Nasa's Spirit and Opportunity vehicles | This model shows Zhurong to have a similar look to Nasa's Spirit and Opportunity vehicles |
Chinese engineers have to follow events with a time lag. | Chinese engineers have to follow events with a time lag. |
The current distance to Mars is 320 million km, which means radio messages take almost 18 minutes to reach Earth. | The current distance to Mars is 320 million km, which means radio messages take almost 18 minutes to reach Earth. |
Every stage of the Zhurong's approach to the surface therefore has to be managed autonomously. | Every stage of the Zhurong's approach to the surface therefore has to be managed autonomously. |
The entry (into the atmosphere), descent and landing strategy follows a familiar architecture. | The entry (into the atmosphere), descent and landing strategy follows a familiar architecture. |
At the chosen moment, the rover, encased in an aeroshell, is released from the Tianwen orbiter and dives downwards. | At the chosen moment, the rover, encased in an aeroshell, is released from the Tianwen orbiter and dives downwards. |
The name's significance: Zhurong is the god of fire in ancient Chinese mythology | The name's significance: Zhurong is the god of fire in ancient Chinese mythology |
A heatshield on the capsule slows the fall by pushing up against the Martian air. A parachute then opens to reduce the velocity still further. Finally, the robot breaks away on a rocket-powered bench for the manoeuvres that take it to the ground. | A heatshield on the capsule slows the fall by pushing up against the Martian air. A parachute then opens to reduce the velocity still further. Finally, the robot breaks away on a rocket-powered bench for the manoeuvres that take it to the ground. |
It is a daunting challenge, but China has shown great competence of late in its space endeavours, which have included putting two rovers on the Moon. | It is a daunting challenge, but China has shown great competence of late in its space endeavours, which have included putting two rovers on the Moon. |
Now that Zhurong has got down successfully, scientists will try to get at least 90 Martian days of service out of it, studying the local geology. A day, or Sol, on Mars lasts 24 hours and 39 minutes. | Now that Zhurong has got down successfully, scientists will try to get at least 90 Martian days of service out of it, studying the local geology. A day, or Sol, on Mars lasts 24 hours and 39 minutes. |
The robot looks a lot like the American space agency's (Nasa) Spirit and Opportunity vehicles from the 2000s. It weighs some 240kg and is powered by fold-out solar panels. | The robot looks a lot like the American space agency's (Nasa) Spirit and Opportunity vehicles from the 2000s. It weighs some 240kg and is powered by fold-out solar panels. |
A tall mast carries cameras to take pictures and aid navigation; five additional instruments will help assess the mineralogy of local rocks and look for any water-ice below ground. | A tall mast carries cameras to take pictures and aid navigation; five additional instruments will help assess the mineralogy of local rocks and look for any water-ice below ground. |