Stowaway

It's mentioned in passing that the spaceship used in the movie is a cycler. A Mars Cycler is a real-life project to reach Mars using mainly gravity assist flybys, originally proposed by astronaut Buzz Aldrin. Once the booster has docked with the cycler there's no way to turn around and go back to Earth since the cycler has very little propellant on board, mostly for minor course corrections. This explains why the captain cannot abort the mission once they discover the stowaway.

A coronal mass ejection (solar "storm") would not arrive suddenly or without advance warning. Solar observations by spacecraft and from the ground give days of warning. The charged particles themselves are too small to be seen, though some do penetrate the eyes and produce visible flashes as observed during the Apollo missions to the moon. The ethereal green vapors shown are total fiction.

Featured in Late Night with Seth Meyers: Anna Kendrick/Phil Donahue & Marlo Thomas (2021)