Day 2: Let there be interstellar dust!

[Truth_and_Power]

Some crucial ingredients for life on Earth may have formed in interstellar space, rather than on the planet's surface. (http://www.space.com/scienceastronomy/070911_st_adenine_dust.html)

Just more possibilities..

[jafar00]

Somehow, I always knew I had a bit of martian in me :)