A SpaceX Falcon Heavy rocket blasted off on Tuesday, putting 24 experimental satellites into orbit. The two side booster rockets returned safely to Earth, but the rocket’s center booster missed its mark, crashing in the Atlantic Ocean.
Among the key spaceflight milestones we're most eager to see in 2018 are - Falcon Heavy flies, Block 5 booster, LightSail 2 and launching to Mars.
The Falcon Heavy—which it’s touting as “the world’s most powerful rocket”—will be able to lift over 54 metric tons into orbit. It has three first-stage boosters that will be entirely reusable.