Stardust is made entirely of cosmic particles and energy and it is possible that she may be indestructible as she can survive planetary explosions and being sucked into a black hole. She can produce devastating eye and hand blasts, re-form herself at will, fly at the speed of light and faster using the power cosmic, and survive indefinitely in space because she does not need air, food, or water. Stardust can also create dimensional portals and black holes, does not age and is immune to all conventional diseases.