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human
[Thor Ragnarok]: A bunch of questions.

I have a few questions: 

* How did everyone in Asgard except Odin forget about Hela, an incredibly public figure? That seems implausible. 


* Did Frigga know about Hela? 

* Where is Hel located? How does Odin's lifeforce keep the doors of Hel closed? 

* How did Hela know where to find Odin? How did she teleport herself? 

* Where is Sakaar located? 

* Why is the time in Sakaar different? What is meant by the edge of known and unknown? 

* Is asgard a rounded planet or a flat one? It looks like flat, so how can a planet be flat? 

* How did Thanos' spacecraft find the Asgardians lifeboat? 

* How is it that Odin died the day his sons met him? How did he know and time it? 

* How was Hela able to break the Mjolnir when no one could? 

* How did Valkyrie survive and leave Hel when fighting Hela? 

* How did the Quinjet, an aircraft that can't fly into space get into Sakaar far away in the universe?

* Why wasn't Hulk able to return to banner during the two years?

* Hulk is usually always seen to be angry. How is he calm throughout the two years in much of the time?
gpt
>How did everyone in Asgard except Odin forget about Hela, an incredibly public figure? That seems implausible.

Odin is old, he's probably older than 99% of the Asgardians that are currently alive. Plus he basically censored that entire section of history.

>Did Frigga know about Hela?

Really depends on Frigga's age, but Hela's mother could very well be someone else and will show up later.

>Where is Hel located? How does Odin's lifeforce keep the doors of Hel closed?

One of the Nine realms. Presumably Odin is doing it like Hodar, but on a more metaphysical and cosmic level.

>How did Hela know where to find Odin? How did she teleport herself?

She's first born of Odin, the most powerful of Odin's children, so she knows where her dad is.

>Where is Sakaar located? Why is the time in Sakaar different? What is meant by the edge of known and unknown?

Sakaar could be in its own pocket dimension, or some weird spacial annmoly, hence why time works different on Sakaar, and why it has wormhole connecting to pretty much everything. Sakaar is probably fairly famous among smugglers, criminals, and adventurers for its wormholes and the games it hold, but at same time it is not really mapped or claimed by any major power. Hence known and unknown.

>Is asgard a rounded planet or a flat one? It looks like flat, so how can a planet be flat?

Asgard is flat, Asgard could have started out as a planet and then constructed into a floating continents, or was build by Asgardians from scratch.

>How did Thanos' spacecraft find the Asgardians lifeboat?

Thanos probably have means of finding the infinity stones, and he was tracking the tesseract when he noticed it is no longer in Odin's vault.

>How is it that Odin died the day his sons met him? How did he know and time it?

Odin probably has precognitive powers, and he was already dying. So he was basically holding onto his last breath until he had a chance to met his sons for the last time.

>How was Hela able to break the Mjolnir when no one could?

In one of the paintings, it is shown that Mjolnir used to be Hela's weapon, so she probably knows all the strength and weakness of the hammer, and its constructions. Not to mention Hela at that point is the most powerful Asgardian alive.

>How did Valkyrie survive and leave Hel when fighting Hela?

It was shown in the movie, one of the other Valkyrie saved her. Shielding her from Hela's sword, presumably that's when she high tailed out of there.

>How did the Quinjet, an aircraft that can't fly into space get into Sakaar far away in the universe?

It got sucked into a wormhole.

>Why wasn't Hulk able to return to banner during the two years?

Hulk was always fighting in those years. And lets face it, Sakaar is scary, Banner probably didn't want to come out either until he met a familiar face.

>Hulk is usually always seen to be angry. How is he calm throughout the two years in much of the time?

Just because he's calm doesn't mean Hulk is not angry.