Scientists do have an open mind. However it is only open to things that don’t contradict existing experimental results. Relativity stands up well to experiments, so anything that replaces it will still be very similar.
That is a close system. The universe is big. Odds are no alien lives close enough for solar sails to get here in the lifetime of the universe or galaxy.
Scientists do have an open mind. However it is only open to things that don’t contradict existing experimental results. Relativity stands up well to experiments, so anything that replaces it will still be very similar.
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That is a close system. The universe is big. Odds are no alien lives close enough for solar sails to get here in the lifetime of the universe or galaxy.