How a Supernova Works
"Humans are born, then we grow and die. Our life cycles are basically the same as those of the massive stars twinkling in the night sky -- if we exploded in a blaze of glory at the end of our time that is."
Will Earth Survive When the Sun Becomes a Red Giant?
"Billions of years in the future, when our Sun bloats up into a red giant, it will expand to consume the Earth's orbit."
Nearest Supernova In 27 Years Explodes in M82 Galaxy
"A supernova has been spotted in the constellation Ursa Major (between the Big and Little Dipper in the night sky) in the M82 galaxy (affectionately known as the cigar galaxy) by a team of students at University College London."
Supernovas & Supernova Remnants
"Every 50 years or so, a massive star in our galaxy blows itself apart in a supernova explosion. Supernovas are one of the most violent events in the universe, and the force of the explosion generates a blinding flash of radiation, as well as shock waves analogous to sonic booms."