After the scuffle between Mann (Damon) and Cooper (McConaughey) in Interstellar, our protagonist gets a hold of a radio and alerts his shipmates to Mann's duplicity. Then his ship explodes. What happened there?
The way I interpreted this scene:
The mission coordinator sent robots to aid the humans on their journeys, not only to add company and tech/ physical support - but to counteract the human-element weakness/ strength - which is a theme in the film.
If a robot found that the world was uninhabitable - it was to self-destruct and kill the scientist, once it had sent a report of its findings (to prevent exactly what happened with Mann)
That is why I think he disabled/ tore apart the robot - and gave the lame excuse 'was using it to power my mission' - and why upon reboot - the reaction was 'this data makes no sense' - because the data was: 'planet uninhabitable' - the protagonist, antagonist and audience know this already - but the soon to be killed character just finds out, and is killed in an explosion.
(The robot at the end jokes about self-destructing, and as seen by the race to the main-ship - no weapons were ever taken, since it wasn't assumed there would be hostile life-forms - I would think they wouldn't have had explosives with them - it wasn't a mining/ prospecting mission, just analysing livability/ sustaining of life.)
These were world-class scientists - so could have Mcguyvered something from rocket-fuel and ammonia, and it seems cruel for the mission leader to murder his scientists - but as they said - they had no resources to recon all of them - and the 12 were willing to die to find a habitable planet. An explosion would be more humane than leaving them on an uninhabitable planet to slowly die.