Senkaku and Diaoyu

It`s Friday, I`m Carl, and this is CNN STUDENT NEWS.

Senkaku and Diaoyu -- two different names for the same set of islands at the center of some tension between China and Japan. You can see those two countries on this map. And right in between them, that`s where you`ll find these islands in the East China Sea.

There`s not much to them. They`re rocky. They`re not near much else. No one lives there.

So why is there tension?

Well, China and Japan each say the islands belong to them. Yesterday, this was seen near the islands -- a Chinese plane. China said it was there to carry out a patrol.

Japan launched its own planes in response, including eight fighter jets. The Chinese plane was gone by the time the Japanese jets showed up. And while China and Japan have been kind of wrestling over these islands for a while, this was the first time aircraft were involved.

1. go by 

to pass somebody/something without stopping