News NASA demonstrates space network speeds of up to 267 Mb/s — Deep Space Optical Communications stretch beyond 140 million miles

[Admin]

NASA details the success of its DSOC system at a galactic scale in a blog post.

NASA demonstrates space network speeds of up to 267 Mb/s — Deep Space Optical Communications stretch beyond 140 million miles : Read more

 

[Xenophage]

Because of the inverse square law, I suspect your math about NASA's estimates of bandwidth is wrong. They said 10 to 100 times faster, and it *should* be the case that the farther out you go, the greater the advantages of laser communications over radio. It should not be a linear relationship.

 

[usertests]

Because of the inverse square law, I suspect your math about NASA's estimates of bandwidth is wrong. They said 10 to 100 times faster, and it *should* be the case that the farther out you go, the greater the advantages of laser communications over radio. It should not be a linear relationship.

I'm not sure. Don't lasers behave similarly to other forms of communication in that they become diffuse over a distance?

 

[domih]

<<...At last, high-bandwidth Internet can operate on a truly galactic scale...>>

Mmm... with a beefy latency of 4.2465 x 365 x 24 x 60 x 60 x 1000 = 133,917,624,000 milliseconds with the nearest star. Double it, for a response.

 

[artk2219]

<<...At last, high-bandwidth Internet can operate on a truly galactic scale...>>

Mmm... with a beefy latency of 4.2465 x 365 x 24 x 60 x 60 x 1000 = 133,917,624,000 milliseconds with the nearest star. Double it, for a response.

The speed of light, so fast, yet so slow, we haven't even touched a fraction of that speed with a physical object yet.

 

[Alvar "Miles" Udell]

And yet how many people in first world nations (primarily the USA) can't even get a cell signal or high speed internet access...

 

[Amdlova]

And yet how many people in first world nations (primarily the USA) can't even get a cell signal or high speed internet access...

If you think it's hard for the ones think on the third ones...

 

[Blastomonas]

May want to double check the distances quoted. I'm fairly sure that the sun is considerably further than 18 million miles away..

 

[das_stig]

Well done NASA and yet Vermin Media can't even supply 50Mbps stable during peak hours.

 

[Notton]

The sun is 93 million miles away from earth, or 149 million km

 

[HaninTH]

I wonder how random space "dust" will affect the signal and if the magnetic fields generated by some planets will do anything to it (Saturn & Jupiter). Also, how will stray light from stars and other interstellar objects come into play?

Oh, to be able to live long enough to see some of these technologies being used and extended. What will we be doing in 100 years, assuming we don't get wiped out by some unforeseen event or we do it to it ourselves before then.