SpaceX's International Space Station resupply launch was a success, but it won't be able to recover the rocket. Elon Musk said that the part of the rocket the company ?hoped to land on its "drone boat" in order to eventually reuse did indeed make it back to the ship, but the rocket landed too hard to be saved.

Musk said the rocket "landed fine," but it tipped over after landing.

Still, it's another step forward in the march toward Musk's eventual plan to make his rockets reusable, an  ?important goal for the future of spaceflight. With a reusable rocket, you can theoretically fly more often (depending on how much time it takes to get the rocket ready for its next flight), and you're wasting a lot less money (assuming the rocket is in good shape when it lands).

Until now, he hasn't been able to do it.

That said, this is the first time the rocket has actually landed on the ship, meaning there's probably just some light tinkering to do.