Question: What happened to the SpaceX Starship SN11?
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As per the live streams held on YouTube, I want to know what really happened to SpaceX Starship SN11

The live streams show a lot of smoke and others show some camera footage, even others say it blew up in the sky.
And other people even say that there was an issue with the 2nd raptor engine

What is really going on here?

* Did it blow up in the sky?
* Did it blow up on the launchpad?

Why did it crash?
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1. **Computer code error**

SpaceX uses computers that run on code(correct me, anyone, if I'm wrong
here)and the SN10 flight was successful (even though it came down with quite a
bump!) so we can assume that SpaceX used the same code but altered it a bit so
they instructed the computer to reduce the velocity so it wouldn't come down
like SN10.

But there was an error with the code
2. **Raptor/s issue/s**

Or we can assume that the computer ran the code correctly, but there was a
raptor issue as shown by the fire here

[![](https://i.stack.imgur.com/LyxCU.png)](https://i.stack.imgur.com/LyxCU.png)

3. **It was caused by the fog**

Or we can also assume that everything went well but the landing wasn't
possible due to the fog. The computer could not calculate and made a botched
landing attempt
4. **Or there was/were some other issue/s**

***So which of the four was it?***

1. Computer code error
2. Raptor issues
3. Bad weather caused by the fog
4. Some other problem/s

Other suggestions and answers other than the given 4 are also welcome!

Please note that i prefer detailed answers

Answer: 
Looks like SN11 most probably crashed.
[![twtr screenshot](https://i.stack.imgur.com/g7aOE.jpg)](https://i.stack.imgur.com/g7aOE.jpg)

“At least the crater is in the right place!”
...
“Something significant happened shortly after landing burn start. Should know what it was once we can examine the **bits** later today.”

My emphasis on "bits", taking it to mean (destroyed) bits of SN11. Looks like we'll know more about what actually happened perhaps later today.
A recent [tweet from Elon](https://twitter.com/elonmusk/status/1379022709737275393) says that:

> 
> Ascent phase, transition to horizontal & control during free fall were
> good.
> 
> 
> A (relatively) small CH4 leak led to fire on engine 2 & fried part of
> avionics, causing hard start attempting landing burn in CH4 turbopump.
> 
> 
> This is getting fixed 6 ways to Sunday.
> 
> 
>