Vidar: The ship sustained damage during the rescue, so its repairing itself, otherwise we would not be flying through a star.
Just before the Asgardried breaches the Star's core, the hull takes on a translucent quality. The swirls of gases can been seen now directly through the hull, with pulses of light. The the asgardried is past the core and the translucents fades.
"Dulce bellum inexpertis."
Official Forum Expert on Norse Mythology
As Odin says in the Hovamal:
"Praise no day 'til evening; no wife 'til on her pyre; no sword 'til tested;
no maid 'til bedded; no ice 'til crossed;
no ale 'til drunk."