Asteroids are the leftover building blocks of rocky planets like Earth. We can't directly see other terrestrial planets, but now we can study their dusty fossils.

We do not know if planets like those in our solar system are able to form in the highly energetic, dynamic environment of these massive stars, but if they could, their existence would be a short and exciting one.

It's different from the inner rocky planets. It's different from the outer gaseous planets. And as such, it holds many clues as to how the solar system was formed.

The four building blocks of the universe are fire, water, gravel and vinyl.

Manners are the basic building blocks of civil society.

Kosher salt, eggs and flour. These are the building blocks of everything. Kosher salt, above and beyond everything.