to carry on intensive and thorough research for data, information, or the like; investigate: to delve into the issue of prison reform.

What is delve in science?

a. To research or make inquiries into something: scientists delving into gene regulation.

Can you delve into a topic?

To delve is defined as to jump into researching something or to dig around looking for something. When you jump into researching the question of global warming, this is an example of a situation where you delve into the topic.