Scene Context: Following the strike, the crew realizes that an extremely noisy plasma region has formed between them and Earth, effectively leaving them in radio isolation for dozens of hours.
Essence of the Phenomenon: Solar flares and their associated particles can severely degrade radio communications. On Earth, this is well-known as a radio blackout, especially in ionization-sensitive frequency bands. For interplanetary communication, the problem is not identical to terrestrial HF blackouts, but a massive plasma event can indeed sharply increase noise levels, degrade signal propagation, and disrupt stable telemetry.
Scientific Basis: NOAA directly links powerful solar flares to radio blackouts, and NASA notes that intense solar events simultaneously involve electromagnetic radiation, particle streams, and CMEs, all of which affect both humans and technology in space.
Current Limitations: The phrase "radio isolation for a minimum of forty hours" is not a universal physical law. The actual duration of channel degradation depends on the event's geometry, frequencies, transmitter power, antenna performance, and interference levels. The scene employs an extreme scenario where noise and channel degradation are so severe that real-time command from Earth temporarily loses all operational meaning.