Canopus, the second brightest star in the night sky. (Sirius is the brightest.) Canopus is in the constellation Carina. The star is visible in the southern United States and elsewhere below 37 north latitude. Canopus has an apparent magnitude of -0.72 and an absolute magnitude of approximately -3.5. It is approximately 115 light-years from the earth.
A dying star can explode with the force of a few octillion nuclear bombs and create any element in the universe. But why do stars go supernova?
Mars, which is the fourth planet from the sun and the third smallest in size, got its name because of its rusty red color. People associated the planet's blood-red color with war, so they named it Mars, after the Roman god of war.