Pic shows 'destructive' star that destroyed planet in Helix Nebula

NASA released a new picture showing a "potentially destructive" white dwarf, which may have destroyed a planet. The image of Helix Nebula, a glowing shell of gas around a dying star, could explain a mysterious X-ray signal that astronomers have detected from the nebula for over 40 years. The white dwarf star was very closely orbiting the planet it destroyed.