An Astronomer Just Laid Out a Navigation System For Interstellar Space Travel

https://www.sciencealert.com ^ | 22 MARCH 2021 | MICHELLE STARR

[Red Badger]

Why would we need it, unless...........?

[Seruzawa]

Uh, Dude, that’s what pulsars are for.

[FreshPrince]

We have been old that everything is moving away from each other. How can we navigate if the reference points are not stationary?

[beef]

Carl Sagan worked this out decades ago.

[George from New England]

We build space bound crafts with communication systems of today. When they get way out there ‘tomorrow.’ We advance and design our receivers to a operate at a higher sensitivity (happening all the time) so we can ‘hear’ the craft(s) out there further than the technology available when we launched them.

Cool.

[minnesota_bound]

Star Trek worked this out too : )

[Red Badger]

That point has been brought up in many sci-fi novels, not the least of which is Asimov’s ‘Foundation’ series.

They simply use their ‘Astronomical Calculators’, i.e. ‘COMPUTERS’, to ‘adjust for time ‘ errors..................

[dfwgator]

This thread needs some Pink Floyd

https://www.youtube.com/watch?v=2iA7wdO00VI

[Candor7]

Our friends have been taught. LOL

[cgbg]

Interstellar travel makes no sense unless wormholes can be created and permit passage—way beyond current technology.

The proposed navigation system might help you figure out if you landed in our galaxy—if not you are permanently lost.

[Red Badger]

Quantum communications will be instantaneous.............

[Jewbacca]

Not exactly. The Milky Way may be moving away from other galaxies, but the stars within it are moving as a unit, albeit a spinning unit.

[sauropod]

bkmk

[Seruzawa]

And wormholes are only a mathematical concept. Many mathematical concepts do not exist in the actual universe.

[StAnDeliver]

Certainly Voyager 2 for decades could send its signal to New Horizon, then NH transmit to Earth and the reverse way as well.

[PIF]

We have been old that everything is moving away from each other.

—
And the space between everything is expanding ... my waistline is a good example ...

[Red Badger]

Even if you had a string of relays out beyond Pluto, the signal still has the limitation of the speed of light, which is too slow..............

[SuperLuminal]

Thought the last Waze update covered this issue...

[EvilCapitalist]

You just need a Tardis.

[Yo-Yo]

Why can’t they just use GPS like everyone else?

/sarc