Is this a thesis statement?

Since NASA's Mars Science Laboratory began its mission in 2011, what have hundreds of scientists in the United States and abroad learned from the rover Curiosity's explorations?

No, this is not a thesis statement. This is a question that prompts further inquiry and investigation. A thesis statement should present a specific argument or claim that will be supported and explored in the essay.

No, this is not a thesis statement. It is a question that seeks to find out what scientists have learned from the explorations of the rover Curiosity. A thesis statement, on the other hand, is a statement that presents the main argument or point of an essay or research paper. It should be a declarative sentence that expresses a clear and concise argument.

No, the sentence you provided is not a thesis statement.

A thesis statement is a clear and concise sentence that presents the main argument or position of an essay or research paper. It is usually found in the introduction paragraph and guides the reader in understanding the purpose and direction of the paper.

While the sentence you provided raises an interesting question about the knowledge gained from the Mars rover Curiosity, it does not present a specific argument or position. To turn it into a thesis statement, you would need to establish a clear argument or position about the significance or impact of the scientists' findings.