Researchers are struggling to replicate AI studies

The world's most powerful rocket may be good for more commercial missions than Mars supply trips. One astronomer says it could open access to lots of asteroids on which humans could strike it rich mining metals. Backstory: Earlier this month, SpaceX successfully launched its Falcon Heavy rocket. It's twice as powerful, and costs a quarter the price to launch, as its closest competitor, Delta IV Heavy. What's new: Falcon Heavy's power could get humans to more asteroids to tap them for supplies.