Long-duration missions in space take a toll on the body, astronauts lose bone density and suffer muscle loss. Blood circulation is also affected, and fluid shifts can also impact eyesight.
It’s hard to know what people can see in their own mind’s eye. But for Maddie Thomas there was no doubt: she had especially vivid mental imagery
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"This is a new scientific field. It's hard to speculate because it's changing so quickly," Wing says.
But then SpaceX communications manager Dan Huot reported on a live stream that mission teams had lost contact with the ship.