When Picard's mask materializes on the computer console, it has no straps. When Geordi picks it up and hands it to Picard, it suddenly has very long straps attached to it.
While the comet is being described as a "rogue comet" (which means not bound to any one star system) the on-screen graphic shows it being in an elliptical orbit.
The elliptical orbit line is a planet. The comet is the line intersecting it coming from the top left running down and right.
The elliptical orbit line is a planet. The comet is the line intersecting it coming from the top left running down and right.
In the Observation Lounge briefing, above Troi's head a little to the right.
When Picard is questioning Ihat (Data) in Engineering, he says "I would like to know Masaka, speak with her." At no time prior to this was it mentioned that Masaka was female. Picard even asked if Ihat was Masaka at first.