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To find a new star in the sky is pretty hard.

Do not look at stars as bright spots only. Try to take in the vastness of the universe.

Reach for the stars.

The Sun, Moon and Stars are there to guide us.

You got to try and reach for the stars or try and achieve the unreachable.

Here's a question we all ask ourselves at least once when we're young: Where does that starlight come from? It's been there before I was born, and before my grandmother, and her grandmother were born. So just how far is that star from Earth?

While human space travel is daunting, machines - with their indefinitely long lifetimes - could travel the galaxy. It might make little difference to them that bridging the distance from one star to the next could take hundreds of thousands of years or more.

Many different planets are many different distances from their host star; we find ourselves at this distance because if we were closer or farther away, the temperature would be hotter or colder, eliminating liquid water, an essential ingredient for our survival.

A practical way to travel between the stars is a must-have for space opera, and a sine qua non for our frequently vaunted future as a galactic society.