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Proxima Centauri, just 4.24 light-years from Earth, is the closest known star to our Sun. Though it’s the smallest member of the Alpha Centauri triple system, this red dwarf has captured the attention of astronomers worldwide. Invisible to the naked eye, Proxima Centauri became headline news in 2016 with the discovery of Proxima b,a rocky ...
9 months ago
Proxima Centauri Facts
The closest star to our Sun, Proxima Centauri, lies approximately 4.25 light-years away. A light-year is the distance light travels in one year—about 9.46 trillion kilometers—at a blistering 300,000 kilometers per second. That makes the journey to Proxima roughly 40 trillion kilometers, a gulf so immense that no human spacecraft has come close to bridging even a tiny fraction of it. Voyager 1, launched in September 1977 (now over 48 years ago), remains humanity's farthest-reaching probe. Traveli
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The closest star to our Sun, Proxima Centauri, lies approximately 4.25 light-years away. A light-year is the distance light travels in one year—about 9.46 trillion kilometers—at a blistering 300,000 kilometers per second. That makes the journey to Proxima roughly 40 trillion kilometers, a gulf so immense that no human spacecraft has come close to bridging even a tiny fraction of it. Voyager 1, launched in September 1977 (now over 48 years ago), remains humanity's farthest-reaching probe. Traveli
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