Our sun’s hotter sister

Stars are not born alone. Rather, they emerge from clouds of gas and dust in groups of up to 10,000, then slowly scatter through space. For the first time, astronomers have identified a star that came from the same solar nursery as our sun, some 4.5 billion years ago. This stellar relative—located 110 light-years away in the constellation Hercules—is hotter […]

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Losing control of our farmland

Rich foreign countries are buying up Thai farmland to ensure their own food supplies, said Sanitsuda Ekachai. An international nonprofit farmers’ rights group has documented “an alarming trend of governments and corporations buying up farmland on a large scale in more than 60 developing countries.” The rush began after the global food crisis of 2007-08, when rich countries realized they […]

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