Question

What is the approximate age of the Milky Way?

Answer 1

13.4 billion years.

Explanation:

Sun is a star in an arm of Milky Way.. It is nearly 4.6 billion years old.

It is much younger than quite many stars in the arms of the Milky

Way.

As of now, an `estimate` of the age of Milky Way is 13.4 billion years.

And this is about 400 million years, after the Big Bang event.

Reference:

http://space.com/263-milky-age-narrowed.html