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3.7-billion-year-old fossil makes life on Mars less of a long shot
Scientists have found the oldest known remnant of life on Earth, a fossil that would support the theory that life took root in immediately after the planet’s birth. Such early life would make life on Mars seem more likely.
Stocks end first losing month since February
Stocks are closing out their first losing month since February as a quiet summer continues on Wall Street.
Brazil's President Rousseff ousted from office by Senate
Brazil’s Senate on Wednesday voted to remove President Dilma Rousseff from office, the culmination of a yearlong fight that paralyzed Latin America’s largest nation and exposed deep rifts among its people on everything from race relations to social spending.