ground articles
Why is my water not soaking into the ground?
That frustrating moment when you turn on the sprinkler, and instead of watching the moisture sink gracefully into the la...
Why are there limits to ground-based telescopes?
The fundamental challenges facing ground-based telescopes are not about the size of the mirror they can polish, but rath...
What are two good reasons to use a ground-based telescope instead of a space telescope?
The image of a gleaming space telescope, floating silently above the clouds, often captures the public imagination as th...