It's impossible to say for sure when Eta Carinae will go supernova. We know it's a massive star nearing the end of its life, and it's definitely a candidate for a supernova explosion in the relatively near future.

However, "near future" in astronomical terms is a very long time.

Here's what we know:

* Eta Carinae is extremely massive: It's about 100 times more massive than our Sun, making it one of the most massive stars known.

* Massive stars live fast and die young: Eta Carinae is burning its fuel at a furious rate, meaning its lifespan is much shorter than that of smaller stars.

* We've seen signs of instability: Eta Carinae has experienced several outbursts and eruptions, indicating that its core is struggling to maintain stability.

The problem is that we don't know how long it takes for a star like Eta Carinae to reach the point of supernova. It could be tomorrow, or it could be thousands of years from now.

What makes it especially interesting is that Eta Carinae is relatively close to us (about 7,500 light-years away), meaning that its supernova would be incredibly bright and spectacular. It could even be visible during the day.

So, while we can't give a definitive answer about when Eta Carinae will go supernova, we know it's a very real possibility, and it's something that astronomers are closely monitoring.