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by rqtwteye 1261 days ago
Read up about the precision LIGO needs. Pretty mind boggling.
1 comments

I don't understand anything about it, but I think I read that LIGO has been enhanced with a technique involving "squeezed light" which allows some bypassing of heretofore assumed fundamental physical limits through quantum wizardry.

Something else I read about, that doesn't sound like it involves far out voodoo tech to me, that I wish I'd live long enough to see, is putting a probe out far enough and in the right position, to use the Sun's gravity as a telescope lens.

...and (maybe) actually get pictures of extrasolar planets.

I don't know if those pictures would be like Hubble's view of Pluto, or in principle could be much better.

If I could have one wish for something extraterrestrial, that is more achievable, it would be close up pictures of Haumea. Eris and others too, but Haumea most of all.

I care nothing at all for Mars colonies, but the most exciting thing about Starship for me is the hope that maybe combining it with in-orbit refueling could enable quicker travel to the outer solar system and loitering/orbiting instead of flying by at top speed.

The Solar Gravitational Lens is very neat but with current propulsion technology it would take a very long time to get the satellites into position.

https://www.youtube.com/watch?v=NQFqDKRAROI&t=411s

Then we'd better start as early as possible.
There's a funny paradox-like situation that arises in space flight where because of the distances involved/ time taken, it might be better to wait some time for a faster method of flight to develop. Of course, it is up for debate whether there are many more ways of propulsion that are yet to be invented.
For anyone interested, this is called the wait calculation.

https://en.wikipedia.org/wiki/Interstellar_travel#Wait_calcu...

incessant obsolescence
Pretty good explanation of the technique and challenges involved: https://youtu.be/4d0EGIt1SPc

One figure that stands out, the probe would need to be about 550 AU from the sun.

Voyager 1 is about 150 AU away from the sun right now, for comparison.