article_snippet.sent: (CNN)Launching rockets is a complicated thing.
article_snippet.sent: So why try to land one?
article_snippet.sent: SpaceX tried to land a Falcon 9 on an autonomous spaceport drone ship in January, but the rocket hit at an angle and exploded.
article_snippet.sent: SpaceX has previously said the odds of a successful landing are about 50%.
article_snippet.sent: And if a successful landing doesn't work?
article_snippet.sent: SpaceX says SpaceX will keep trying and, after SpaceX masters landing at sea, hopes to someday land rockets on the ground.