Final answer:
New observations can lead to the development of new scientific models and laws that incorporate the newly observed phenomena.
Step-by-step explanation:
New observations can have a significant effect on a scientific theory. They can lead to the development of new, more sophisticated models and laws that incorporate the new phenomena observed. For example, the observation of black holes led to the transformation of the theory of relativity. By carefully and precisely observing nature, we can test and validate these new scientific models.