International
Chilean scientist plans to clean up mining with ‘metal eating’ bacteria
AFP
Starving microorganisms capable of surviving in extreme conditions have already managed to “eat” a nail in just three days.
In Chile, a scientist is testing “metal-eating” bacteria she hopes could help clean up the country’s highly-polluting mining industry.
In her laboratory in Antofagasta, an industrial town 1,100-kilometers north of Santiago, 33-year-old biotechnologist Nadac Reales has been carrying out tests with extremophiles — organisms that live in extreme environments.
Reales came up with her idea while still at university as she was conducting tests at a mining plant using microorganisms to improve the extraction of copper.
“I realized there were various needs in the mining industry, for example what happened with the metallic waste,” she told AFP.
Some metals can be recycled in smelting plants but others, such as HGV truck hoppers that can hold 50 tons of rock, cannot and are often discarded in Chile’s Atacama desert, home to the majority of the country’s mining industry.
Chile is the world’s largest producer of copper, which accounts for up to 15 percent of the country’s GDP, resulting in a lot of mining waste that pollutes the environment.
In her research, Reales, who now runs her own company Rudanac Biotec, concentrated on iron-oxidizing bacteria called Leptospirillum.
She extracted the bacteria from the Tatio geysers located 4,200 meters above sea level, some 350 kilometers from Antofagasta.
The bacteria “live in an acidic environment that is practically unaffected by relatively high concentrations of most metals,” she said.
“At first the bacteria took two months to disintegrate a nail.”
But when starved, they had to adapt and find a way of feeding themselves.
After two years of trials, the result was a marked increase in the speed at which the bacteria “ate,” devouring a nail in just three days.
– Surprising benefit –
Reales says “chemical and microbiological tests” have proved the bacteria are not harmful to humans or the environment.
“We’ve always seen a lot of potential in this project that has already passed an important test in the laboratory,” said Drina Vejar, a microbiologist who is part of a four-person team working with Reales.
“It’s really necessary at this time when we have to plan for a more sustainable development, especially in all these cities with so many polluting industries.”
Mining companies have shown interest in the research but while Rudanac Biotec previously benefitted from a state fund for start-ups, the company needs investment to move on to its next stage of trials.
Reales says she needs money to see if her method will “eat a medium sized beam or a hopper.”
When the disintegration process is complete, what remains is a reddish liquid residue, a solution known as a lixiviant that itself possesses a surprising quality.
“After biodisintegration the product generated (the liquid) can improve the recovery of copper in a process called hydrometallurgy,” said Reales.
Essentially, the liquid residue can be used to extract copper from rock in a more sustainable manner than the current use of chemicals in leaching.
Reales says it means green mining is “totally feasible.”
That is of great interest to mining companies that could use it to improve their large scale extraction of copper or other minerals, while also reducing their pollution, something they are required to do by law.
Reales recently submitted a request for an international patent for her technology, but more importantly she hopes it will help reduce metal waste blotting the landscape in the mining regions of her country.
International
Trump floats Vance-Rubio potential Republican ticket for 2028 election
U.S. President Donald Trump suggested on Monday that Vice President JD Vance and Secretary of State Marco Rubiocould potentially form a Republican presidential ticket for the 2028 elections.
Speaking during a dinner with law enforcement officials as part of National Police Week, Trump publicly praised both officials and said they could make “an ideal team” for the next presidential race.
“Who likes JD Vance? Who likes Marco Rubio?” Trump asked attendees before adding that the pair “sound like a good combination.”
The president highlighted his vice president’s performance in office, stating that their current partnership has been highly effective. “JD is perfect, that has been a perfect formula,” Trump told reporters later.
He further suggested that a Vance-Rubio pairing could represent a strong presidential and vice-presidential ticket, although he stopped short of offering any formal endorsement.
“I think it sounds like a presidential candidate and a vice-presidential candidate,” he said, while clarifying that his remarks should not be interpreted as an official backing of any future campaign.
So far, neither Vance nor Rubio has publicly confirmed any intention to run in the 2028 presidential election.
Rubio previously sought the Republican nomination in 2016 but withdrew after losing the primary race to Trump. Later, in a December 2025 interview with Vanity Fair, he said he would be among the first to support Vance if he decided to run for the White House.
Vance, meanwhile, has recently dismissed speculation of any political rivalry with Rubio amid growing discussion about potential future GOP leadership.
International
Russia Accuses Ukraine of Violating Victory Day Truce
Russia accused Ukraine on Saturday of violating a Victory Day truce that was reportedly agreed with mediation from the United States, claiming that Ukrainian forces carried out attacks on Russian territory as well as on the annexed Crimean peninsula.
Despite the declared ceasefire, the Russian Ministry of Defense said in a statement that Ukrainian forces attacked Russian military positions using attack drones and artillery.
According to the ministry, Ukrainian forces made twelve attempts to advance toward Russian-held positions across several sectors of the front line.
It also alleged that Ukrainian strikes targeted civilian infrastructure in Crimea, several border regions, the Caucasus, and other areas including Moscow and Perm in the Ural region.
The Defense Ministry estimated around 8,900 violations of the ceasefire in total, including more than 7,000 drone attacks and over 1,000 strikes involving tanks, artillery, multiple rocket launch systems, and mortars since the truce came into effect at midnight.
Russia said its forces responded “symmetrically” to what it described as violations by Ukrainian troops.
Earlier, the Kremlin denied claims that Ukraine attempted to sabotage a military parade in Red Square marking the 81st anniversary of the Soviet victory over Nazi Germany in World War II.
“No attempts were made. Everything went well,” Kremlin spokesperson Dmitry Peskov told local media.
International
Trump Says U.S.-Iran Talks Progressing, Signals Possible Deal on Strait of Hormuz
U.S. President Donald Trump said Wednesday that Washington is holding “very good” talks with Iran and stated that there is a strong possibility of reaching an agreement to end the conflict and reopen the Strait of Hormuz.
“We’ve had very good conversations over the last 44 hours, and it’s very possible that we’ll reach an agreement,” Trump said during an event held in the Oval Office at the White House.
The president’s remarks came just hours after he announced a temporary suspension of the military operation aimed at escorting vessels stranded in the Persian Gulf due to Iran’s blockade of the strategic Strait of Hormuz.
Trump explained that the pause in operations is intended to facilitate diplomatic negotiations between both sides and prevent further military escalation in the region.
“We’re in good shape, and right now things are going well. Now we have to achieve what we need to achieve. If we don’t, we’ll have to go much further,” the Republican president warned.
In a post published on his social media platform Truth Social, Trump reiterated that if Iran accepts Washington’s proposed conditions, military operations and the naval blockade affecting the Islamic republic would come to an end.
However, he also issued a new warning to the Iranian government, stating that the United States would respond with attacks “of greater intensity” if Tehran rejects the agreement promoted by the White House.
Panama confirms drug contamination of El Salvador coffee shipment occurred on its territory
Trump floats Vance-Rubio potential Republican ticket for 2028 election
Russia Accuses Ukraine of Violating Victory Day Truce
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
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