Hi there,
Can you link us to the page in question? I’m not sure if this is a Taxonomy archive page’s title and description section or if it’s manually added through a block element.
If it’s the theme default’s archive page title and description:
The contents you see on that section are directly taken from the details of the category it currently queries. It takes whatever is set on Admin > Posts > Category (or Tag).
The “Data Science” you see is a dynamic display of the current archive title. It changes depending on what taxonomy term archive you’re viewing.
To clarify: Were you trying to change the layout? Or perhaps only to change what text is displayed?
Let us know.