It took a while, four months to grow the peppers in space, and while they were enjoyed by astronauts who can lose some of their ability to taste and smell in zero gravity.
The verb see just like other verbs of the senses like taste and smell, these are stative verbs and stative verbs describe a state of being rather than an action and usually they can't be used in the continuous tense.
They can help us choose better in the future, buy coffee better in the future, communicate with others what we like and what we don't like, and it's fun to develop your sense of taste.