I've been reading about the sophisticated double-slit experiments currently being conducted by a team of physicists led by Tom Campbell. It's no secret of course that Campbell hopes that the findings of these experiments will strengthen the argument that our universe is a computer simulation...
Maybe it's just extremely wishful thinking on his part, but Stephen Hawking seems to think there's a chance this could be some sort of defunct alien probe.
If a vast amount of resources were invested in this, would it even be possible to corral this thing and at least bring it into orbit around...
It's the end over end tumbling that is different than other space rocks. Also, it came from outside the solar sytem,looped past Earth and is now leaving the solar system.
Given the evidence available as of today, is it reasonable to believe there is even a miniscule chance that the Oumuamua asteroid was built by aliens? Or is this just sensationalist journalism?
One interesting thing I noticed on the NASA site tracking the Voyagers is that their distance is measured both from the Sun and from the Earth. Since the Earth is whizzing around the Sun much faster than either of the Voyagers are travelling, their distance from Earth actually decreases at...
Would a moon of Uranus that rotates in the opposite direction of Uranus be considered to have progade rotation because it rotates the same way as the Sun?
Wouldn't that depend on the observer's latitude on the Moon? If you're at the equator of the Moon and see the Earth on the horizon, I would think the Earth would be sideways, with other factors like the Earth's tilt and the Moon's tilt affecting precisely how sideways.
With regard to the OP's original question, I believe any interstellar travel will depend on our ability to travel at near-light speeds. I'm aware of the problems that we'd need to cope with like collisions with dust particles damaging the spaceship. Presumably some smart person will sort that...