SPACE.com We may be witnessing the messy death of a star in real time
For over two centuries, we have watched the red giant R Leonis dim and brighten with regularity, but this 'heartbeat' is beginning to speed up near the end of the star's life.
For over two centuries, we have watched the red giant R Leonis dim and brighten with regularity, but this 'heartbeat' is beginning to speed up near the end of the star's life.