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Watch China launch their Mars mission Tianwen 1 live onboard thier long march 5b rocket.

The fourth Long March-5 rocket, to be used to launch China's first Mars exploration mission, was vertically transported to the launching area at the Wenchang Space Launch Center in south China's Hainan Province on Friday. The carrier rocket, coded as Long March-5 Y4, is planned to be launched in late July or early August, according to the China National Space Administration.

The China National Space Agency (CNSA) will be launching their first interplanetary mission to Mars on top of their heavy lift rocket, the Long March 5! This will be the heaviest payload ever sent to Mars and features orbiters, a lander and a rover!!!

China's Mars rover will likely attempt to land at a site in northeastern Mars, according to a new paper published just days ahead of the mission's launch.

China’s heaviest rocket has rolled to its launch pad for liftoff Thursday with the country’s first Mars landing mission, an ambitious attempt to place an orbiter around the Red Planet and a robotic rover on the Martian surface in early 2021.

The Chinese mission, named Tianwen 1, is the second of three probes taking aim on the Red Planet this month, when Mars is properly positioned in its orbit around the sun to allow a direct journey from Earth. Such launch opportunities only come about once every 26 months.
A Long March 5 rocket is set for liftoff with China’s Tianwen 1 mission some time between 12 a.m. and 3 a.m. EDT (0400-0700 GMT) Thursday, according to public notices warning ships to steer clear of downrange drop zones along the launcher’s flight path.

The launch will be the first operational flight of China’s Long March 5 rocket, the most powerful launch vehicle in the country’s inventory. Ground crews at the Wenchang Space Launch Center on Hainan Island — China’s newest launch site — transferred the Long March 5 rocket to its launching stand Friday for final pre-flight checkouts.

China has launched four Long March 5 rockets since the heavy-lift launcher debuted in 2016. Three of the four missions have been successful, including the last two test flights.

The Long March 5 will aim to send the Tianwen 1 spacecraft away from Earth on a seven-month trip to Mars. The ambitious mission is China’s first probe to another planet, following a series of progressively complex robotic expeditions to the moon.
China kicked off development of the Mars mission in 2016.

It will be the country’s second attempt to reach Mars with a robotic probe, following the Yinghuo 1 orbiter, which was stranded in Earth orbit after launch as a piggyback payload on Russia’s failed Phobos-Grunt mission.

Benefiting from the engineering heritage of China’s lunar exploration program, the Chinese national strategy set Mars as the next target for planetary exploration,” wrote Wan Weixing, chief scientist of China’s Mars exploration program, in a paper published this month by the science journal Nature Astronomy. “China’s first Mars mission is named Tianwen 1, and aims to complete orbiting, landing and roving in one mission.”

Chinese officials announced the Tianwen name for the country’s planetary missions in April. The name Tianwen comes from the work of ancient Chinese poet Qu Yuan, meaning “quest for heavenly truth,” according to the China National Space Administration, or CNSA, the country’s space agency.

“The country’s first Martian probe will conduct scientific investigations about the Martian soil, geological structure, environment, atmosphere, as well as water,” CNSA said in a statement.

The entire Tianwen 1 spacecraft weighs about 11,000 pounds, or 5 metric tons, fully fueled for launch, according to the mission summary in Nature Astronomy.

Assuming a successful launch this month, the spacecraft will enter orbit around Mars in February 2021, eventually settling in a loop around the Red Planet ranging between 165 miles (265 kilometers) and nearly 7,500 miles (12,000 kilometers) over the Martian poles.

As soon as next April, the lander and rover modules will detach from the orbiter to begin a descent through the Martian atmosphere. The prime candidate for the Tianwen 1 mission’s landing site is in Utopia Planitia, a broad plain in the northern hemisphere of Mars where radar soundings from orbit have indicated the presence of a reservoir of ice containing as much water as Lake Superior, the largest of the Great Lakes.

The Tianwen 1 rover weighs about 529 pounds, or 240 kilograms, nearly twice the mass of China’s Yutu rovers on the moon.

The orbiter is designed to operate for at least one Martian year, or about two years on Earth. The solar-powered rover, fitted with six wheels for mobility, has a life expectancy of at least 90 days, Chinese officials said.

Credit- LC 123 youtube channel for the unofficial launch stream and matt lowne for the duna ship, the other content is my own