how can anakin and obi wan surviev spcae

Anakin and Obi-Wan survive the space/Mustafar heat mostly because the scene is fictional and leans on “Force protection” and plot convenience rather than real physics. In-universe, fans also point to the idea that Mustafar’s facilities used shielding, so the worst conditions were not fully exposed until the battle damaged that protection.

In-universe explanation

• The Force is the simplest Star Wars answer for why they can endure impossible conditions for a short time.

• Protective infrastructure on Mustafar may have made parts of the planet or the mining complex survivable before the shields were compromised.

• Once the fight moves into the most exposed areas, the danger becomes obvious, which fits the story’s dramatic escalation.

What fans usually mean

People usually ask this about Mustafar, where Anakin and Obi-Wan are near lava and extreme heat, not literal open space. The honest answer is that Star Wars prioritizes spectacle over real-world survivability, so the scene is best read as dramatic sci-fi logic, not science.

Simple version

They survive because the story says the Force, shields, and cinematic rule-of- cool make it possible.

TL;DR: Not realistic, mostly Force + shields + movie logic.