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For decades, no known eukaryote had been shown reproducing above 60°C. Then scientists found a microscopic amoeba in California that divides at 63°C and survives brief exposure to still greater heat. The fire amoeba has moved one of biology's apparent boundaries and raised a more intriguing possibility: scientists may simply not have found the real limit yet.
Saudi Arabia
Attacks on Saudi Arabia and Houthi advances in Yemen are testing its defence pact with Turkey and Pakistan. What have the partners promised, and how far are they prepared to go?
The war with Iran is exposing the financial costs of American power. Higher energy prices and expensive borrowing threaten to squeeze households already struggling…
Britain
Britain is already absorbing the economic cost of the Iran war as oil approaches $100, gilt yields rise and debt interest costs increase. If crude climbs towards $140, the pressure on inflation, interest rates…
A nuclear war could kill billions far beyond the battlefield. For eighty one years, the world has avoided using the bomb. But nuclear weapons…
Medicine
A new generation of medicines is moving from the laboratory into human trials. Scientists are designing proteins, searching vast molecular landscapes and building virtual cells, opening the possibility of faster drug discovery, treatments tailored…
Japan spent three decades exporting cheap capital and became America’s largest foreign creditor. As the yen slid towards ¥164 to the dollar, Washington intervened…
Middle East
The confrontation with Iran is becoming something larger than a war. From the Strait of Hormuz to Yemen, Iraq and Lebanon, the old American-led security architecture is being challenged by regional powers determined to…
China has not won the artificial intelligence race, but Kimi K3 shows that American chip restrictions have failed to stop its progress. While the…