Meaning of 無数 in Japanese

The number of visible stars is very great.

Thousands of small businesses went under during the recession.

A human body consists of a countless number of cells.

There were countless stars in the sky.

Countless stars were twinkling in the sky.

There are innumerable stars in the galaxy.

Muscle tissue consists of innumerable cells.

There are countless heavenly bodies in space.

There are innumerable stars in the universe.

So that Michelangelo might paint certain figures on the ceiling of the Sistine Chapel, so that Shakespeare might write certain speeches and Keats his poems, it seemed to me worthwhile that countless millions should have lived and suffered and died.