Space

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One thousand years. That is the minimum length of time it would take us to get to the nearest star – Proxima Centauri – using current methods. But since we discovered that this star houses a potentially habitable planet, scientists have been more enthusiastic about the idea of interstellar travel than ever before. “It’s tantalising,”
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Since we first spotted the TRAPPIST-1 system in February, scientists have been scrambling to learn more about these seven rocky planets circling around their red dwarf star – but research suggests the planets aren’t as hospitable as we’d hoped. Two more reports on TRAPPIST-1 again identify challenging conditions that would make it difficult for extraterrestrial
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Some 5,000 light-years from Earth, there’s a bizarre and mysterious nebula that clocks an average temperature of just 1 Kelvin (−272.15 °C or −457.87 °F), making it the coldest natural object in the known Universe. For decades, scientists have struggled to explain how this otherwise unremarkable cloud of gas maintains temperatures colder than empty space