China Sets Launch Window for Mission to Moon

The Long March 3A rocket and a lunar orbiter, the Chang'e One, which are under wraps, sits on the launch pad at the Xichang Satellite Launch Centre, in southwest China's Sichuan province, October 20, 2007. China's preparations to launch its first lunar orbiter are on schedule for lift-off later this week, a Chinese official said on Monday. REUTERS/China Daily
The Long March 3A rocket and a lunar orbiter, the Chang'e One, which are under wraps, sits on the launch pad at the Xichang Satellite Launch Centre, in southwest China's Sichuan province, October 20, 2007. China's preparations to launch its first lunar orbiter are on schedule for lift-off later this week, a Chinese official said on Monday. REUTERS/China Daily
TT
20

China Sets Launch Window for Mission to Moon

The Long March 3A rocket and a lunar orbiter, the Chang'e One, which are under wraps, sits on the launch pad at the Xichang Satellite Launch Centre, in southwest China's Sichuan province, October 20, 2007. China's preparations to launch its first lunar orbiter are on schedule for lift-off later this week, a Chinese official said on Monday. REUTERS/China Daily
The Long March 3A rocket and a lunar orbiter, the Chang'e One, which are under wraps, sits on the launch pad at the Xichang Satellite Launch Centre, in southwest China's Sichuan province, October 20, 2007. China's preparations to launch its first lunar orbiter are on schedule for lift-off later this week, a Chinese official said on Monday. REUTERS/China Daily

China plans to launch an unmanned spacecraft to the moon between 4 am and 5 am Beijing time on Tuesday (2000-2100 GMT on Monday), the official Xinhua news agency said, citing information from the country’s National Space Administration.

Chang’e 5 is the country's most ambitious lunar mission yet. If successful, it would be a major advance for China's space program, and some experts said it could pave the way for bringing samples back from Mars or even a crewed lunar mission.

The four modules of the Chang’e 5 spacecraft are expected be sent into space Tuesday aboard a massive Long March-5 rocket from the Wenchang launch center along the coast of the southern island province of Hainan, according to a NASA description of the mission.

The secretive Chinese National Space Administration has only said that a launch is scheduled for late November, although the Lunar Exploration Project said in a statement Monday that success in orbiting, descending and returning would “lay a solid foundation for future missions.”

The mission's key task is to drill 2 meters (almost 7 feet) beneath the moon's surface and scoop up about 2 kilograms (4.4 pounds) of rocks and other debris to be brought back to Earth, according to NASA. That would offer the first opportunity to scientists to study newly obtained lunar material since the American and Russian missions of the 1960s and 1970s.

After making the three-day trip from Earth, the Chang’e 5 lander’s time on the moon is scheduled to be short and sweet. It can only stay one lunar daytime, or about 14 Earth days, because it lacks the radioisotope heating units to withstand the moon’s freezing nights, The Associated Press reported.

The lander will dig for materials with its drill and robotic arm and transfer them to what's called an ascender, which will lift off from the moon and dock with the “service capsule.” The materials will then be moved to the return capsule for the trip home to Earth.

The technical complexity of Chang’e 5, with its four components, makes it “remarkable in many ways,” said Joan Johnson-Freese, a space expert at the US Naval War College.

“China is showing itself capable of developing and successfully carrying out sustained high-tech programs, important for regional influence and potentially global partnerships,” she said.

Chang’e 4 — which was the first soft landing on the moon’s relatively unexplored far side almost two years ago — is currently collecting full measurements of radiation exposure from the lunar surface, information vital for any country that plans to send astronauts to the moon.

China in July became one of three countries to have launched a mission to Mars, in China's case an orbiter and a rover that will search for signs of water on the red planet. The CNSA says the spacecraft Tianwen 1 is on course to arrive at Mars around February.



Scientists in Japan Develop Plastic that Dissolves in Seawater within Hours 

A researcher shows a sample of ocean-degradable plastic at the Center for Emergent Matter Science (CEMS) of Japanese research institution Riken in Wako, Saitama Prefecture, Japan May 27, 2025. (Reuters) 
A researcher shows a sample of ocean-degradable plastic at the Center for Emergent Matter Science (CEMS) of Japanese research institution Riken in Wako, Saitama Prefecture, Japan May 27, 2025. (Reuters) 
TT
20

Scientists in Japan Develop Plastic that Dissolves in Seawater within Hours 

A researcher shows a sample of ocean-degradable plastic at the Center for Emergent Matter Science (CEMS) of Japanese research institution Riken in Wako, Saitama Prefecture, Japan May 27, 2025. (Reuters) 
A researcher shows a sample of ocean-degradable plastic at the Center for Emergent Matter Science (CEMS) of Japanese research institution Riken in Wako, Saitama Prefecture, Japan May 27, 2025. (Reuters) 

Researchers in Japan have developed a plastic that dissolves in seawater within hours, offering up a potential solution for a modern-day scourge polluting oceans and harming wildlife.

While scientists have long experimented with biodegradable plastics, researchers from the RIKEN Center for Emergent Matter Science and the University of Tokyo say their new material breaks down much more quickly and leaves no residual trace.

At a lab in Wako city near Tokyo, the team demonstrated a small piece of plastic vanishing in a container of salt water after it was stirred up for about an hour.

While the team has not yet detailed any plans for commercialization, project lead Takuzo Aida said their research has attracted significant interest, including from those in the packaging sector.

Scientists worldwide are racing to develop innovative solutions to the growing plastic waste crisis, an effort championed by awareness campaigns such as World Environment Day taking place on June 5.

Plastic pollution is set to triple by 2040, the UN Environment Program has predicted, adding 23-37 million metric tons of waste into the world's oceans each year.

"Children cannot choose the planet they will live on. It is our duty as scientists to ensure that we leave them with best possible environment," Aida said.

Aida said the new material is as strong as petroleum-based plastics, but breaks down into its original components when exposed to salt. Those components can then be further processed by naturally occurring bacteria, thereby avoiding generating microplastics that can harm aquatic life and enter the food chain. As salt is also present in soil, a piece about five centimeters (two inches) in size disintegrates on land after over 200 hours, he added.

The material can be used like regular plastic when coated, and the team are focusing their current research on the best coating methods, Aida said. The plastic is non-toxic, non-flammable, and does not emit carbon dioxide, he added.