The writer could best revise the passage to make it stronger by:
adding a thesis to introduce the topic of satellites.
A thesis statement at the beginning of the passage would help set the main focus and purpose of the text, providing the reader with a clear understanding of what the passage aims to convey. It would act as a guiding statement that outlines the central topic or argument, in this case, the topic of satellites and space exploration. By including a thesis, the writer can enhance the passage's coherence and clarity, making it more effective for the readers.