|Alternate names||Curiosity Sphere, Curiosity Construct|
|Voiced by||Ellen McLain|
|“||Hey, look at THAT thing! No, that other thing.”|
|— Curiosity Core • Portal|
It is the first core that you need to knock off of GLaDOS with a rocket, and is the easiest to access upon doing so. Chell then drops it into the incinerator. Once this is done, GLaDOS's behavior becomes more erratic and her voice is accompanied with breathing sounds.
- The Curiosity Core, along with every other character in Portal (save for the Anger Core) is voiced by Ellen McLain.