Question

1. nasa has telescopes searching for background radiation throughout the observable universe. are they likely to find radiation that is 15 billion years old or older? why or why not?

Explanation:

The universe is estimated to be approximately 13.8 billion years old. Radiation cannot exist longer than the universe itself, as there was no space or time for radiation to exist before the universe formed.

Answer:

No, they are not likely to find radiation that is 15 billion years old or older. The universe is only about 13.8 billion years old, so radiation cannot be older than the universe itself—there was no environment for such radiation to exist before the universe formed.