Are there any potential supernovae close enough to impact life on earth if they explode?
Stars go supernova all the time. How close to Earth could a supernova be to wipe our life away?
How often do stars in our universe die? What would happen if a gamma ray burst from a supernova hit Earth from differing distances? Does all the stars die in an explosion? Could life that started on a super heated volcanic planet that uses immense heat to run their metabolism survive the eventual supernova of their sun? What could possibly end the world except killer asteroids? Is it possible for a star to orbit a planet?  Has it ever been observed? Can Star Destroyers destroy a planet? How universe will come to an end? Do stars revolve around the sun in our solar system? How many light years away is closest star? Is it possible that there's "no night" on planets orbiting in a binary star system? What are the chances for such planets to be habitable? What is the most likely death of the Earth? Is it the Milky Way and Andromeda galaxies colliding, or is it the sun dying and expanding? If our universe will end in a heat death, will that mean no form of life will be possible after this happens? Do stars and planets really affect human lives according to astrology? How? Is it possible that every planet in our solar system had life at one time? What chain of events would happen if the sun expired and exploded? How will the universe end? When will that happen? Will the planets eventually fall onto the sun? Could gamma rays destroy the earth? If a gamma ray was extremely close to the earth could it destroy the earth? What will happen if the earth or our sun got hit by a gamma ray burst? Is there a possibility that the planets in the solar system will fall into the sun eventually? Where will our solar system be when Andromeda collides with the Milky Way galaxy? Does accelerating universe expansion fade off star light? What could end the world except asteroids? What happens to a planetary system when its sun dies? What would happen to earth if the sun exploded? What will happen if the sun explodes? What will happen if sun dies? How does a star die?