Question

complete the sentence.
_________________________ provided data for thousands of articles, but it has also contributed to the discovery of dark energy, a force that accelerates the universes expansion.
the hubble space telescope has not only
not only has the hubble space telescope

Explanation:

The sentence structure uses "not only...but also" (here "but" is used, continuing the "not only" part). For the inversion structure when "not only" is at the beginning of the sentence, the subject and auxiliary verb (here "has") need to be inverted. The option "Not only has the Hubble Space Telescope" fits this inverted structure to make the sentence grammatically correct, while the other option would not create the proper "not only...but" (with the relevant meaning) structure here.

Answer:

Not only has the Hubble Space Telescope