Well perspectives may vary depending on one’s relied upon source of information. I once read of a particular yogi’s astral travel experience where he looked into the window of a space station and perceived astronauts in space. One may deny this yogi’s claim, suggesting a lack of verifiable proof with accusations of pretense. The same way the claims of astronomical science may be denied by skeptics. But ultimately doubts can only be absolved through direct experience. Either by perceiving the astronauts in space like the said yogi, or climbing on board a rocket ship. Until then, our claims for, or against these space travels are inconclusive. Each individual will then inadvertently rely on a position that promotes harmony in his or her psyche.