Yes, "stellar nursery" and "star nursery" are the same thing. Both terms refer to regions of space where stars are born.

The terms are interchangeable, but "stellar nursery" is a bit more formal and scientific.

Here are some other terms used to describe these regions:

* Molecular cloud: This is the most common term for the dense cloud of gas and dust where stars form.

* Star-forming region: This is a more general term for any area where stars are forming.

* Nebula: While not all nebulae are star nurseries, some, like the Orion Nebula, are known for their intense star formation activity.

So, no matter which term you use, you are referring to the same fascinating places in the universe where new stars are born.