Laughter is good for everything, and astronomy and space can be funny too.
Astronomy Humor is a collection of astronomy jokes for kids, adults and geeks of all ages. Laughter helps to keep us young and healthy, so see if anything tickles your fancy. (And how *does* the Man in the Moon cut his hair?)
But on a serious note, we don't know what (to us) unexpected life forms might exist elsewhere. After all, it's only in recent decades that we learned about unexpected life forms that exist on Earth. There are bacteria that thrive in killer environments with high radioactivity, temperatures that are above boiling or below freezing or highly acidic or alkaline, and many others. There are also entire ecosystems around deep sea vents whose energy doesn't come from the Sun.
Last edited by Mona - Astronomy; 11/27/1505:58 AM.
Most people today cannot see the Milky Way because of light pollution. But to look along the plane of the Galaxy, there are so many stars that they no longer look like individual stars. It looks like a white liquid.