Ronald Held wrote:
There could have been a wormhole, which was not avoided due to primitive sensors. They ended up near the barrier and the same sensors(damaged) did not have them avoid the magnetic storm?
See I've long thought something similar. A magnetic storm didn't throw the Valiant
to the galaxy's edge, something else did (like maybe a wormhole). But perhaps to their less advanced instruments they thought the energy barrier was a magnetic storm.