Second sun may appear at any moment. Scientists claim that Betelgeuse, a star 640 light years away from Earth, is going to explode soon. Nikolai Chugai, head of the department of Variable Stars and Astronomical Spectroscopy of the Russian Academy of Sciences’ Institute of Astronomy shares his views with RIA Novosti’s Samir Shakhbaz, on possible threats and impact this star may cause to our planet. Samir...