Quiz 14C

Which of the following does not correctly describe the fate of the Sun and the Solar system?

  1. The Sun is about half way through its 10 billion year life cycle.
  2. In 3-4 billion years, the Sun will get hotter, and the temperature on Earth will rise enough to boil all oceans away.
  3. In about 5 billion years, the Sun will become a red giant, and the Earth may eventually find itself inside the outer envelope of the Sun.
  4. During the planetary nebula phase, the Sun will blow up as a supernova, and the Earth will be cast off into the interstellar space.
  5. The ultimate fate of the Earth, if still around, is to circle the dim white dwarf as an icy chunk of rocks.