SpaceSolar system has a tail shaped like a four-leaf clover The first images of our star's strange tail come from a NASA probe studying the bubble of plasma created as the sun ploughs through interstellar gas News
SpaceElderly suns rip their closest planets to shreds A survey of planet-hosting stars offers some of the first real-world evidence that ageing suns shred inner planets, offering a clue to Earth's eventual fate News