This post from March is timely now — also, there’s an update, with a movie of the asteroid. Update, April 24, 2020: Here’s the visitor:
Category: Solar System Saturday
Reblog: What Makes Earth So Unique? It’s the Minerals – Rocky Planet
That’s salt — we couldn’t live without it. Salt is a mineral. It’s really difficult to mention “minerals” without your listener’s eyes glazing up and
Guest Videos: What’s Earth Got That Other Planets Don’t?
No, not moss, lichen, and grass. Plate tectonics! That split in the ground of Iceland shown above is where two tectonic plates are spreading apart.
