Complex sentence: Dr. Weir briefs the crew that the "Event Horizon" was built to test an experimental gravity drive, which generates an artificial black hole and uses its immense gravitational power to bridge two points in spacetime, greatly reducing travel time over astronomical distances.
Split into simpler sentences: Dr. Weir briefs the crew, telling them that the "Event Horizon" was built to test an experimental gravity drive. This drive generates an artificial black hole and uses its immense gravitational power to bridge two points in spacetime, greatly reducing travel time over astronomical distances.