Vocabulary: attempt (v+n), to be on course (phrasal verb), narrowly (adv), ship deck (n).
An attempt to safely land part of the SpaceX rocket on a ship in the Atlantic ocean has failed. (see previous post https://easyenglishnews.wordpress.com/2015/01/06/rocket-will-return-to-earth/).
The top part of the rocket, containing materials for the International Space Station, is on course and will arrive next Monday. The bottom part of the rocket returned to earth and narrowly missed landing on the ship.
The ship was not damaged, but some equipment on the ship’s deck was.
SpaceX says it will continue trying to land rockets safely back on earth so that the rockets can be reused. This will make space exploration much cheaper in the future.
You can watch the rocket being launched here: http://www.bbc.com/news/science-environment-30752515