For the last two years, all Ive done is watch YouTube videos of astronauts, she says.
I kind of went down the rabbit hole.
JoAnna Garcia Swisher, who plays Betty Grissom, says the diligence paid off.

Credit: Cook Allender/ABC
In a way, we were able to time-travel, she says.
JOANNA GARCIA SWISHER:Betty didnt always have the fanciest clothes.
If a trend or an object hadnt yet been invented, the crew would have to rethink what appears.
Was this the year when lip gloss was introduced?
SAVAGE:There were a lot of technological things, like, When did they have this?
And it felt great to be bringing it to life like that the whole way.
An edited version of this interview ran inEntertainment Weekly issue #1367, on newsstands Friday, June 5.
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