
Marathon Fusion's announcement revives an ancient dream of chemists and raises concerns about the impact of laboratory gold on the markets
San Francisco startup Marathon Fusion has announced the use of nuclear fusion techniques to transform mercury into stable gold, amid a lack of independent scientific verification and concerns about its potential impact on the global gold market.
AI-generated summary
Marathon Fusion develops nuclear fusion technologies and claims to be able to convert mercury into gold.
According to a report published by Euronews, San Francisco-based startup Marathon Fusion, which specializes in nuclear fusion technologies, announced that it has developed a method aimed at converting mercury into stable gold. However, this claim has not yet been subject to independent verification.
The ad revives an ancient dream of chemists of turning cheap metals into gold, and also raises concerns about the impact lab-grown gold has on the market, similar to the impact lab-grown gemstones have on the diamond industry.
The company also claims to have broken a 40-year-old Soviet record by using a plasma centrifuge, in which electrically charged gas spins at high speeds to separate the isotopes needed to produce nuclear fusion fuel. It says it is currently building a reactor in San Francisco that aims to achieve record power density, that is, producing the most energy possible for its size.
Artificial gold raises controversy
According to the World Gold Council, the production of mines around the world reached 3,672 tons of gold during the year 2025, while the total amount extracted throughout history is estimated at about 222,600 tons. A study by Marathon Fusion suggests that a one-gigawatt fusion plant could produce about five tons of gold per year. According to these estimates, operating 100 similar stations could add about 500 tons of gold annually, equivalent to approximately 14% of the current annual global production.
In publications on the
AI outlook — possibilities, not facts
Conduct further independent scientific reviews of the company's results
Likely · Within months

The reports cover recent studies on the use of artificial intelligence to speed up cancer treatment planning, the role of genes in reaction to childhood trauma, and environmental and fire hazards resulting from improper disposal of cheap electronic devices.

Scientists have discovered a huge species of fungus in Yunnan Province, China called 'Diangonus rex'. The fungus belongs to a family that appeared after the extinction of the dinosaurs, and is characterized by columnar reproductive structures up to 50 centimeters long, which helps it spread its spores in the dense forest environment.

Archaeologists have found hemp seeds and human hair inside a 3,000-year-old tomb in southern Siberia, in the oldest physical evidence of the use of cannabis for psychoactive purposes.

In 2026, a team of international scientists will begin drilling a 2.1-kilometre-deep hole near the Krafla volcano in Iceland to monitor magma, predict volcanic eruptions, and experiment with superheat power generation, in a project that could change understanding of volcanic activity and low-carbon energy generation.

An international study with the participation of the Universities of Copenhagen and Leiden analyzes the DNA of more than 4,500 ancient individuals, revealing migrations to northern Europe about 4,000 years ago that may have carried the oldest ancestors of current Germanic languages, challenging the assumption that they arrived 5,000 years ago.

Archaeologists in the village of Cyborg in Turkey have uncovered a Neolithic settlement that includes the oldest stone-depicted story scene in the world, dating back about 11,000 years, and raising questions about the lives of prehistoric societies and their customs.