The Enterprise sets out to help the colonized planet Penthara IV, where an asteroid impacts with an apocalyptic effect, first scorching then lasting clouding comparable to nuclear winter. On the route to it, an unknown vessel appears after a temporal distortion and beams aboard history professor Berlingoff Rasmussen from earth three centuries later (the 26th), who is obsessed by Picard, who accepts the whole crew to be questioned, despite the possibilities of fraud or altering reality. Once at Penthara 4, Geordie down there and Data aboard devise a method to create a greenhouse-effect, at the risk of making it far worse, so Picard wrestles with using Rasmussen's hindsight, but his own history proves significantly problematic... Written by
Did You Know?
Rasmussen's question to Riker concerning what he thought was innovative about the USS Enterprise-B is the first canonical reference to that starship. See more
The Professor claims to be an historian from the future, and Picard seems to accept this, saying in the crew briefing that the Professor's credentials seem to be in order. It would arguably be rather difficult to verify the credentials of someone from the future, whose 'credentials' don't exist yet. See more
Lt. Commander Data
I assume your hand print will open this door, whether you are conscious or not.
Third Brandenburg Concerto
Written by Johann Sebastian Bach See more