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If you’re watching this video, that means
you have an internet connection, although
you may live in an area with limited providers
or network speeds. Still having internet accessibility
can improve everything from entertainment,
to work, to education, and health care. But
41.3% of the world doesn’t have access to
the internet… at all. And that’s where
SpaceX comes in with Starlink, which is getting
very close to launching their service. What
is it, what are the latest developments, and
why should you care?
I’m Matt Ferrell ... welcome to Undecided.
So as I mentioned, internet access isn’t
ubiquitous. Just over 40% of the world doesn’t
have any access to the internet yet, and even
in areas with access it can be spotty if you’re
not in more urban areas. Places like Africa,
the Middle East, and Asia are lagging behind
areas like North America and Europe. Laying
long cable runs into remote regions can be
costly given the number of potential customers.
Even building out wireless signals in those
areas is costly, which is why there are still
many low bandwidth areas or places with no
signal at all in the United States. While
96% of urban areas have access to broadband,
only about 61% of rural areas do.
Satellite internet service solves some of
that problem because you can cover large areas
with a single satellite, but there are some
big downsides.
Current satellite-based internet services
are using geostationary satellite’s that
are orbiting over 35,000 km (22,000 mi) above
the surface of the earth. It’s that distance
that creates the first major problem: latency.
A radio signal takes about 120 ms to reach
a geostationary satellite, with another 120
ms to relay that signal back down to the ground.
So in theory you’d be looking at at least
240 ms, but in practice you often see a round-trip
latency between 400 - 600 ms. 12 times slower
than what you see on the ground. And then
you have the challenge of how much bandwidth
a single satellite can handle at once, which
can affect the download and upload speeds
for everyone sharing that satellite. That
means your maximum upload and download speeds
will most likely be on the lower side, and
you’ll have some data caps to contend with
each month. Viasat and HugesNet are two of
the options you have today and cost between
$30-$150/month for speeds between 12-100 Mbps.
And Viasat’s current throughput in their
satellites is about 260Gbps, which is shared
by everyone using it.
What this means is that there’s an opening
for competition, and that’s where SpaceX
comes in with Starlink. Since we already have
satellite internet, what makes Starlink different?
It’s a low earth orbit (LOE) constellation
of satellites that operate around 1/3 to over
1/100 the height of geostationary satellites.
As of April 22, 2020, there are 422 satellites
in the Starlink constellation so far, with
most of them deployed at around 550 km (340
mi) above the surface. They’re trying to
launch 60 satellites per Falcon 9 flight for
a total of around 4,400 satellites in phase
1. And they’ll add another 7,500 in phase
2. So around the year 2027 they’ll have
nearly 12,000 satellites deployed in three
orbital shells. Now it’s not guaranteed,
but SpaceX has also submitted paperwork for
an additional 30,000 satellites beyond that.
Why so many satellites? Low earth orbit satellites,
being much closer to the earth, means they
can’t be stationary. They have to move faster
to maintain their orbit, and they also have
a smaller cone of coverage. But a big benefit
of being so much closer is a much lower latency
for communication. It will have latencies
around 25-35ms, which makes it comparable
to cable and fiber optic networks. However,
when using lasers to communicate between satellites,
which Starlink will eventually do, it gets
a little physics boost. Light travels through
a vacuum about 47% faster than through glass,
like a fiber optic cable. So even when accounting
for transmitting from the planet and back,
the faster laser transmission speeds between
satellites will give the network a latency
edge compared to long stretches of fiber on
earth. And each satellite will be able to
handle 1 Tbps, which is almost 4 times the
capacity of Viasat. That’s roughly 40,000
people streaming 4K video at once.
While all of that sounds incredible, this
isn’t a service that’s meant to knock
out terrestrial internet service. It’s a
service meant for a smaller segment of the
market, which is primarily areas less densely
populated. Just this past March, Elon talked
about that at the Satellite 2020 conference.
”And the challenge for anything that is
space-based is that the size of the cell is
gigantic. It’s great for very low to maybe
medium sparsity situations, but it’s not
good for high density situations. We’ll
have some small number of customers in L.A.,
but we can’t do a lot of customers in L.A.
because the bandwidth per cell is simply not
high enough.” -Elon Musk
With tens of thousands of satellites being
put into orbit, it’s going to dwarf everything
that’s come before. At this point in our
history, we’ve only launched about 9,000
objects into space. And of those a little
less than 6,000 are still in use today. SpaceX
is going triple that number in 5 to 7 years.
And if they move forward with the additional
30,000, you can probably understand why a
lot of people are concerned about overcrowding
and space debris. If you’ve ever seen the
movie Gravity, then you probably know about
Kessler syndrome. It’s the theory that an
object colliding with another in a densely
packed area of space could cause a cascade
of destruction.
The FCC required very strict plans from SpaceX
to mitigate space debris, which meant achieving
a higher level of de-orbiting reliability
than NASA uses for itself: 90% of satellites
reliably de-orbiting. With a targeted lifespan
of 5-7 years, SpaceX told the FCC that it
will "implement an operations plan for the
orderly de-orbit of satellites nearing the
end of their useful lives at a rate far faster
than is required under international standards."
And that SpaceX satellites "will de-orbit
by propulsively moving to a disposal orbit
from which they will reenter the Earth's atmosphere
within approximately one year after completion
of their mission." About 95 percent of the
satellites’ parts will disintegrate in the
Earth’s atmosphere as they de-orbit.
There’s also been concerns about the impact
on astronomical observations. With the satellites
being very visible when deployed, and also
noticeable as they’re reaching their final
orbit, astronomers are worried about the light
pollution. SpaceX has been working with astronomers
to address these concerns with strategies
like painting sections of the newer satellites
black to reduce reflection. Or adjusting their
orbit orientation to minimize how the satellite
will catch and reflect sunlight towards the
surface during their orbit. And even adding
a sun shade to the satellite to help block
reflections. They’re calling it VisorSat.
There’s still a lot of outstanding questions
around how this will ultimately impact visual
and radio telescope observations, but SpaceX
is actively trying to address them.
SpaceX isn’t the only company working on
low earth orbit constellations for internet
service. Companies like Telesat, Oneweb, and
Amazon all have plans, but nobody has successfully
launched a business out of this. Amazon is
working on Project Kuiper, which will have
around 3,200 satellites, but has yet to put
any satellites into orbit. And OneWeb, which
launched 74 satellites, just filed for bankruptcy
in March of 2020.
”Guess how many LEO constellations didn’t
go bankrupt. Zero. Zero. Iridium is doing
okay now, but Iridium 1 went bankrupt. Worldcom
went bankrupt. Globalstar, bankrupt. Teledesic,
bankrupt. Am I leaving anyone out? There’s
a bunch of others that didn’t get very far
... and they all went bankrupt. Anyway, they
all went bankrupt.” -Elon Musk
“So you’re focusing on making it work
first?” -Jeffrey Hill
“Not bankrupt.” -Elon Musk
There’s a big business opportunity for the
company that can get up and running first,
which is looking like SpaceX. In 2018 they
estimated the total cost to be about $10B,
which is a lofty price tag for a company that’s
expected to make around $3B - $5B a year from
launches by 2025. The projections for yearly
revenue from Starlink are $30-$50B a year
by 2025. But that’s a means to an end for
Elon and SpaceX. In a media call before the
launch of the first Starlink satellites Elon
said:
”We see this as a way for SpaceX to generate
revenue that can be used to develop more and
more advanced rockets and spaceships. We believe
we can use the revenue from Starlink to fund
Starship.” -Elon Musk
Which leads right into the goal for becoming
a multi planetary species.
”There are really two fundamental paths
history is going to birfricate along two directions.
One path is we stay on earth forever, and
then there will be an eventual extinction
event. I don’t have an immediate doomsday
prophecy, but eventually history suggests
that there will be a doomsday event. The alternative
is to become a space faring civilization and
a multi-lantern species, which I hope you
agree that is the right way to go. Yes? That’s
what we want. (Points at Mars)” Elon Musk
Back to earth, we’re not going to have to
wait too much longer before seeing Starlink
in action.
But before I get to when Startlink is actually
going to be available, it’s a good time
to talk about getting a VPN for your internet
… whether it’s terrestrial or space based.
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The private beta service is scheduled to start
in the northern US and Canada around August
2020, with a public beta following that up
in November 2020. Part of the reason for the
limited scope is due to where the current
satellites are orbiting. As more satellites
join the constellation, we’ll see more areas
rolled into the beta program. It’s going
to be interesting to see how well the system
performs over the next year or two, and what
opportunities it opens up for mobility, internet
access, and other businesses. Areas that have
no or poor internet availability will benefit
the most from Starlink, but so will areas
with a lack of competition. And if it proves
to be as low latency as promised, it could
be a huge moneymaker for high frequency stock
traders. It’s not just gamers that benefit
from low latency. Starlink’s projected 25-35
ms latency is faster than anything stock traders
have today between major trading centers in
the US and Europe. In businesses where every
millisecond counts, Starlink could mean big
business.
If you liked this video be sure to check out
my video on EV charging. Even if you're already
familiar with EVs, I cover some aspects of
how charging works and what it means for our
electric grid. Now, Jump into the comments
and let me know what you think about Starlink.
And as always, thanks so much for watching,
I’ll see you in the next one.
