All of that will only happen after 8 minutes, see this comment.
Earth has a circular orbit because space-time is curved by the mass of the sun. (Think of a large bowling ball on a trampoline, you can make a small ball travel in circles around it, and if there was no friction, it would go on indefinitely.) When the sun’s mass suddenly disappears (by pure magic, as this would violate many laws of physics), spacetime would flatten out, at the speed of light.
All of that will only happen after 8 minutes, see this comment.
Earth has a circular orbit because space-time is curved by the mass of the sun. (Think of a large bowling ball on a trampoline, you can make a small ball travel in circles around it, and if there was no friction, it would go on indefinitely.) When the sun’s mass suddenly disappears (by pure magic, as this would violate many laws of physics), spacetime would flatten out, at the speed of light.