* The Universe: The universe is estimated to be about 13.8 billion years old. This age is based on observations of the cosmic microwave background radiation, a faint afterglow of the Big Bang.

* The Sun: Our Sun is about 4.603 billion years old. Scientists determine this by analyzing meteorites, which formed at the same time as the Sun and its planets.

Comparison:

The Sun is about 3.2 billion years younger than the Universe. This means the Sun formed about 23% of the way through the Universe's existence.

Think of it this way: If the Universe's age was a clock, the Sun would have formed just past the 2:00 PM mark!