Rover’s Martian backyard
BEIJING — China says its Tianwen-1 spacecraft has entered a temporary parking orbit around Mars in anticipation of landing a rover on the red planet in the coming months.
The China National Space Administration said the spacecraft executed a maneuver to adjust its orbit Wednesday morning Beijing time and will remain in the new orbit for about the next three months before attempting to land. During that time, it will be mapping the surface of Mars and using its cameras and other sensors to collect further data, particularly about its prospective landing site.
That follows the landing of the U.S. Perseverance rover Feb. 18 near an ancient river delta in Jezero Crater to search for signs of ancient microscopic life.
A successful bid to land Tianwen-1 would make China only the second country after the U.S. to place a spacecraft on Mars. China’s solar-powered vehicle, about the size of a golf cart, will collect data on underground water and look for evidence that the planet may have once harbored microscopic life.
Tianwen, the title of an ancient poem, means “Quest for Heavenly Truth.”
Landing a spacecraft on Mars is notoriously tricky. About a dozen orbiters missed the mark. In 2011, a Marsbound Chinese orbiter that was part of a Russian mission didn’t make it out of Earth’s orbit.
China’s attempt will involve a parachute, rocket firings and airbags. Its proposed landing site is a vast, rock-strewn plain called Utopia Planitia, where the U.S. Viking 2 lander touched down in 1976.
Tianwen-1’s arrival at Mars on Feb. 10 was preceded by that of an orbiter from the United Arab Emirates.
Tianwen-1 represents the most ambitious mission yet for China’s secretive, military-linked space program that first put an astronaut in orbit around Earth in 2003 and last year brought moon rocks back to Earth for the first time since the 1970s. China was also the first country to land a spacecraft on the little-explored far side of the moon in 2019.