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Japan Aims to Bring Back Soil Samples from Mars Moon by 2029

This composite photo, created from over 100 images of Mars taken by Viking Orbiters in the 1970s, made available by NASA shows the planet Mars. (NASA via AP)
This composite photo, created from over 100 images of Mars taken by Viking Orbiters in the 1970s, made available by NASA shows the planet Mars. (NASA via AP)
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Japan Aims to Bring Back Soil Samples from Mars Moon by 2029

This composite photo, created from over 100 images of Mars taken by Viking Orbiters in the 1970s, made available by NASA shows the planet Mars. (NASA via AP)
This composite photo, created from over 100 images of Mars taken by Viking Orbiters in the 1970s, made available by NASA shows the planet Mars. (NASA via AP)

Japan's space agency plans to bring soil samples back from the Mars region ahead of the US and Chinese missions now operating on Mars, in hopes of finding clues to the planet's origin and traces of possible life.

The Japan Aerospace Exploration Agency, or JAXA, plans to launch an explorer in 2024 to land on the Martian moon Phobos to collect 10 grams (0.35 ounce) of soil and bring it back to Earth in 2029, reported The Associated Press.

The rapid return trip would put Japan ahead of the United States and China in bringing back samples from the Martian region despite starting later, project manager Yasuhiro Kawakatsu said in an online news conference Thursday.

NASA's Perseverance rover is operating in a Mars crater where it is to collect 31 samples that are to be returned to Earth with help from the European Space Agency as early as 2031. China landed a spacecraft on Mars in May and plans to bring back samples around 2030.

JAXA scientists believe about 0.1% of the surface soil on Phobos came from Mars, and 10 grams could contain about 30 granules, depending on the consistency of the soil, Kawakatsu said.

Tomohiro Usui, professor at the Institute of Space and Astronautical Science, said soil on Phobos is likely to be a mixture of material from the moon itself and material from Mars that was spread by sandstorms. Collecting samples from multiple locations on Phobos could provide a greater chance of obtaining possible traces of life from Mars than obtaining soil from a single location on Mars, he said.

Any life forms that might have come from Mars will have died because of harsh solar and cosmic radiation on Phobos, JAXA scientists said. The NASA and the European Space Agency missions focus on potential life forms and evolution of the area of the Jezero crater, believed to be an ancient lake.

By studying Phobos soil samples including material from Mars, scientists hope to learn about the evolution of the Martian biosphere, Usui said.

He said Japanese research on Phobos and NASA’s samples from specific locations in the Martian crater can complement each other and could lead to answers to questions such as how Martian life, if present, emerged and evolved in time and place.

Last December, a JAXA probe, Hayabusa2, brought back more than 5 grams (0.19 ounce) of soil from the asteroid Ryugu, more than 300 million kilometers (190 million miles) from Earth, in the world’s first successful return of an asteroid sample.

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Tourist Coins Pose Giant Problem at N. Ireland's Famous Causeway Site

Tourists are pictured at the Giant's Causeway, a Unesco World Heritage Site, near Bushmills in Northern Ireland, on July 8, 2025. (Photo by PAUL FAITH / AFP)
Tourists are pictured at the Giant's Causeway, a Unesco World Heritage Site, near Bushmills in Northern Ireland, on July 8, 2025. (Photo by PAUL FAITH / AFP)
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Tourist Coins Pose Giant Problem at N. Ireland's Famous Causeway Site

Tourists are pictured at the Giant's Causeway, a Unesco World Heritage Site, near Bushmills in Northern Ireland, on July 8, 2025. (Photo by PAUL FAITH / AFP)
Tourists are pictured at the Giant's Causeway, a Unesco World Heritage Site, near Bushmills in Northern Ireland, on July 8, 2025. (Photo by PAUL FAITH / AFP)

Northern Ireland's Giant Causeway draws close to one million visitors a year but their habit of wedging tiny coins in cracks between the rocks -- to bring love or luck -- is damaging the world-famous wonder.

Now authorities are urging tourists to keep their coins in their pockets to preserve the spectacular landscape.

Some 40,000 columns mark the causeway, Northern Ireland's first UNESCO World Heritage Site.

Geologists say the natural phenomenon was created by an outpouring of basalt lava 60 million years ago.

Legend has it that the causeway was formed by Irish giant Finn McCool.

In recent decades, visitors have pushed thousands of coins into fissures in the rocks.

The gesture is "a token of love or luck", according to Cliff Henry, the causeway's nature engagement officer.

But the coins rapidly corrode and expand, causing the basalt to flake and leaving "unsightly" rust-colored streaks, Henry told AFP.

He pointed to streaks on a rock and gingerly prized out a US cent with a set of keys.

"We get a lot of euros and dollar cents. But coins from literally all over the world -- any currency you can think of, pretty much -- we have had it here," he said.

A report by the British Geological Survey in 2021 revealed that the coins were "doing some serious damage" and something had to be done about it, he noted.

Signs are now in place around the site appealing to tourists to "leave no trace".
"Once some visitors see other people have done it, they feel that they need to add to it," causeway tour guide Joan Kennedy told AFP.

She and her colleagues now gently but firmly tell tourists to desist.

At the exit from the causeway, a US couple said they were "distressed" to hear of the damage the metal caused.

"Our guide mentioned as we came up that people had been putting coins into the stones. It's really terrible to hear that," said Robert Lewis, a 75-year-old from Florida.

"It's kind of like damaging any kind of nature when you are doing something like that, putting something foreign into nature. It's not good," said his wife, Geri, 70.

As part of a £30,000 ($40,000) conservation project, stone masons recently removed as many coins as they could -- without causing further damage -- from 10 test sites around the causeway.

Henry said the trial was successful and is to be expanded across the causeway.

"If we can get all those coins removed to start with that will help the situation and hopefully no more coins will be put in," he said.

"If visitors see fewer coins in the stones and hear appeals to stop the damaging practice, the problem can maybe be solved.

"We know that visitors love and cherish the Giant's Causeway, and many form deep personal connections to it, so we want this natural wonder to remain special for future generations."