Making space exploration 1000x cheaper basically. Not kidding, that’s roughly the goal I believe. That’s needed to make it possible to send enough stuff and people to Mars to make us a multi planetary species. It’s a completely crazy goal/idea, but that’s actually been the goal of SpaceX from the start. Getting Starship to work seems incredibly difficult and almost impossible, but so did landing a big booster rocket on a drone ship and today they do that so often it’s almost become boring.

As another commenter stated, this explosion is not at “Starbase” where they launch starship. It’s unlikely to have any impact on the launch schedule for Starship. They tested an engine on a test stand and it failed. They will likely learn something from it.