The precursors of life (polypeptides) are already found on asteroids. Life probably evolved from asteroid impact plus geothermal vent. It's probably everywhere. We aren't special. Also waterbears survive and can reproduce after exposure to space so it leads me to believe that aliens might have already arrived here, they just are not what we expected.
When any current moment is over, it immediately begins to lose all shape and color. Like a fish pulled out of water and left to die on land, its colors pale and it flops helplessly around until its life energy ebbs beyond a certain point and it dies. However, there are some moments that refuse to die. As they weaken, they stumble and lurch through the now, wreaking havoc. Colliding with lives and events, they leave their mark, aroma, their scales, on everything they touch.