Falcon Heavy may have drastically increased the number of asteroids we can mine  

From Gizmodo:

Asteroid mining is about more than just heading up into space and bringing back a rock full of platinum—you actually need to land something on just the right asteroid.

Falcon Heavy, the world’s most powerful rocket launched by Elon Musk-led SpaceX two weeks ago, may have changed the game, says one astronomer.

“Instead of a few hundred we may have thousands of ore bearing asteroids available,” Martin Elvis from the Harvard-Smithsonian Center for Astrophysics told an audience at the American Association for the Advancement of Science annual meeting in Austin, Texas.