An 1870 illustration by Ernst Haeckel of the primordial ocean slime, or “Urschleim,” from which he believed all life emerged. Carbon — the major component of all terrestrial life — only accounts for around 0.03 percent of the Earth’s entire mass. Cite: Moynihan, T. “Life as Slime.” Asimov Press. When I read 'Life as Slime,' I was reminded of the care that was taken to curate the Golden Record. I think this article and the interstellar time capsule share the same sentiment: life on Earth is precious and amazing.