Did you know that Venus (pictured here) exhibits crescents just like our Moon? Learn more about it at space.com

A thing of beauty is a joy for ever:

Its loveliness increases; it will never

Pass into nothingness; but still will keep

A bower quiet for us, and a sleep

Full of sweet dreams, and health, and quiet breathing.

Therefore, on every morrow, are we wreathing

A flowery band to bind us to the earth,

Spite of despondence, of the inhuman dearth

Of noble natures, of the gloomy days,

Of all the unhealthy and o'er-darkened ways

Made for our searching: yes, in spite of all,

Some shape of beauty moves away the pall

From our dark spirits. Such the sun, the moon,

Trees old and young, sprouting a shady boon

For simple sheep; and such are daffodils

With the green world they live in; and clear rills

That for themselves a cooling covert make

'Gainst the hot season; the mid forest brake,

Rich with a sprinkling of fair musk-rose blooms:

And such too is the grandeur of the dooms

We have imagined for the mighty dead;

All lovely tales that we have heard or read:

An endless fountain of immortal drink,

Pouring unto us from the heaven's brink.

~Endymion (excerpt), John Keats