It’s intriguing that life as we know it depends on a seemingly un-natural distribution of minerals.
One-third of minerals — chemical solids whose atoms are highly ordered — are created directly or indirectly by life forms.
The exploding pods of the popping cress send the plant’s seeds flying in all directions, as far as a meter from the parent.
Thanks to a unique cluster of properties, water is able to fulfill many roles essential to our living planet.
I remember watching the Apollo moon landings on TV from 1969 to 1972 as a child.