China will answer ‘heavenly question’: Can it land on Mars?

Having already joined the upper ranks of spacefaring nations, China is preparing to try its next bold leap: launching an orbiter, a lander and a rover to Mars.

The mission — shadowing NASA’s Perseverance rover and the United Arab Emirates’ Hope orbiter — lifted off on Thursday and aims to place China where its Communist leadership has long wanted to be. China is eager to show that it can manage complex interplanetary missions on its own, and landing on Mars is a difficult accomplishment that only the United States and, briefly, the Soviet Union have achieved before.

“We cannot lie in the cradle of Earth forever,” Bao Weimin, a senior director at the state-owned China Aerospace Science and Technology Corporation, said on state television recently, paraphrasing a Soviet rocket scientist, Konstantin Tsiolkovsky. He called the exploration of Mars “a manifestation of the country’s scientific and technological strength.”

For China, more than pride is on the line. The country’s leader, Xi Jinping, has made space exploration a pillar of the country’s development in the decades ahead, with an assortment of missions planned through the middle of the century, many involving human crews.

The mission is called Tianwen-1, or “Questions to Heaven” after a classical Chinese poem (also sometimes translated as “Heavenly Questions”) from the 3rd century B.C. The vessel, weighing more than five tons in all, includes an orbiter that will circle the planet for a Martian year — 687 days — and conduct its own scientific observations. It will also serve as a relay for communications to a lander and rover that two or three months after arriving in orbit in February will try to descend to the planet’s surface.

While the United States has reached all these milestones, China is trying to do them all at once. “Tianwen-1 is going to orbit, land and release a rover all on the very first try, and coordinate observations with an orbiter,” four scientists involved in the program wrote last week in the journal Nature Astronomy.

“No planetary missions have ever been implemented in this way,” they added. “If successful, it would signify a major technical breakthrough.”

Lander

A parachute attached to a protective SHELL will slow the lander’s descent. Next, a set of STRUTS will deploy midair. Once on the surface, a RAMP will slide out so the rover can drive off.

Orbiter

The orbiter will carry seven instruments, including cameras, a subsurface radar, a spectrometer, a magnetometer and particle analyzers to conduct what they called “a global and extensive survey of the entire planet.”

The lander — which, at 530 pounds, is nearly twice the mass of the rovers China sent to the moon — has six instruments that it will employ over 90 days on the surface. They include ground-penetrating radar to study the planet’s geology and search for potential underground reservoirs of ice — a key to sustaining an extended human presence in space. The main candidate for a landing site, the scientists said, is Utopia Planitia, a 2,000-mile wide basin where NASA’s Viking 2 landed in 1976.

Tianwen-1 is lifted off on Thursday from the Wenchang Space Launch Center on Hainan, the island off China’s southeastern coast. The center, which launched its first rocket in 2016, was selected to take advantage of its comparatively lower latitude than those of China’s other launch sites.

This will not be China’s first attempt to travel to Mars. That one, in 2011, ended in failure, though not one of China’s own making. It built an orbiter, Yinghuo-1, that was piggybacking on a Russian mission to Phobos, one of the Martian moons, but the Russian rocket stalled in low-Earth orbit, crippled by faulty computer circuits. The two spacecraft eventually plunged back to Earth.

In the years that followed that setback, China has racked up a number of impressive spaceflight accomplishments.

On three occasions, China’s astronauts have docked in orbit with space stations of the country’s own construction. And twice it has landed robotic rovers on the moon, with its latest mission reaching the lunar far side, a feat never before accomplished by any space program. That rover continues to roam, and its ground-penetrating radar has deepened understanding of the lunar surface.

Namrata Goswami, an independent analyst and author of a forthcoming book, “Great Power Competition in Outer Space,” said that the Chinese were systematically building strategic and logistical capabilities in space with a geopolitical goal in mind.

Last month, for example, China launched the last of the satellites needed to establish a global positioning system, called Beidou, which it plans to offer to countries as an alternative to the American GPS and other countries’ navigation systems.

“The Communist Party of China wants to prove to the world that they are actually a legitimate alternative to a U.S.-led space order,” she said.

Mr. Bao, from the China Aerospace Science and Technology Corporation, even floated the idea last year that China could create an economic zone in space by the middle of this century, one that could contribute $10 trillion to the Chinese economy.

In the nearer term, China plans to launch another lunar lander at the end of the year, which will return samples from the moon for the first time since the Apollo missions, and complete its third orbiting space station as soon as 2022. It hopes to gather samples for return to Earth from Mars by 2030 — setting up a race with a joint project by NASA and the European Space Agency with the same goal.

“For the Chinese, space touches on all the strands of comprehensive national power,” said Dean Cheng, an expert on China’s space program with the Heritage Foundation in Washington, D.C.