"The radar is fundamental, " says Matt Wallace, the flight system manager on the project.

BBC: Mars Curiosity rover success depends on 'crazy' landing

Ulster fought back with Matt McCullough and Paddy Wallace tries to leave Gloucester 29-14 ahead at the break.

BBC: Ulster 14-32 Gloucester

Centre Darren Cave gave the final pass to midfield partner Paddy Wallace, who dived over after 32 minutes for Matt Williams' side to lead 13-3 at the break.

BBC: Scarlets 16-16 Ulster

"As we've said before, Matt is the best in the business, " NBC News executive Alexandra Wallace said.

WSJ: NBC Had Brief Talks With CNN's Anderson Cooper