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Mount Everest

How high can a mountain be?

... mountains eventually tend to fall down, just through their own weight. And the important concept here is something ... a certain height, it will begin to fall down under its own weight. So, the Himalayan chain is actually beginning to ... - Thanks, Nicky. So, mountains fall down due to their own weight and the height at which they start to fall is due ...

Someone climbing the Matterhorn.

Why are planets round and mountains pointy?

... and larger bodies, they essentially start having their own sort of gravitational field, which kicks in a feedback ...

Raindrops hitting the ground

Is there space dust in rain?

... how we detect what's in the atmosphere, not of our own planet, but other planets around other stars. So, if we ...

Autumnal Vineyard in Napa Valley

Have the seasons ever moved? ?

... the seasons ever shifted? Assuming we could follow our own calendar back millions of years, would northern ...