What If We Fitted the Sun with a Dyson Sphere?
The sun is the strongest source of energy in the solar system.
Every single second, 600 million tons of hydrogen is burned as fuel to produce the heat and
light we experience on Earth… it’s an arrangement that’s set to continue for another
5 billion years.
But, is there a way to truly harness all of that power for our own use?
This is Unveiled and today we’re answering the extraordinary question; What if we fitted
the sun with a Dyson Sphere?
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So, what is a Dyson Sphere?
Right now, it’s only an idea; a thought experiment that physicist Freeman Dyson came
up with in 1960.
Dyson imagined a civilization far more advanced than our own and the energy it would need
to sustain itself.
At some point, that civilization would run out of energy on its home planet, so would
likely turn to its star system for alternative sources.
How best to do this?
Dyson imagined building a massive, circular structure to enclose the home star, in some
way absorbing its energy output like super-advanced solar panels.
How much energy could we really harvest with such a device, though?
Well, a lot!
The sun is a massive energy source, releasing around 380 yottawatts at any one time - that’s
380 septillion watts… while the NASA Earth Observatory calculates that just 1,360 of
those watts reaches every square metre of the Earth’s atmosphere during daylight.
Clearly our planet receives enough to survive, but that’s a lot of energy loss between
us and our star!
Right now, in regard to human energy consumption, we’re not even making the most of what we
do get, although a gradual conversion toward solar panels in recent years has pushed us
toward becoming more efficient.
Nevertheless, as human civilization grows and grows, it’s expected to require more
and more energy, while having to manage (and move away from) depleting fossil fuel reserves.
All things considered; a Dyson Sphere would solve a lot of problems!
The idea of actually building one, though, is almost incomprehensible - and impossible
with our current technology.
To even construct something that big boggles the mind.
A structure that circles and encases the entire sun; it’d need to be at least 870,000 miles
across - but more likely the diameter would easily break the one-million-mile mark!
We don’t currently have the materials needed to sustain such a massive energy flow, either…
but if we did then life would be very different!
For one, being able to absorb the full energy of the sun means that the Dyson Sphere itself
would probably be habitable, or at least advanced enough to support some type of life much like
the International Space Station does - with high-level science experiments happening on
every corner.
In such a structure, people living on the inner edges of the sphere would live as though
at the bottom of a bowl, with the massive sun searing overhead, constantly visible through
a protective screen.
Such an environment would naturally enjoy a near-infinite source of energy, but it’d
also be under constant threat… just one breach between it and the star it sits so
close to, and the whole thing could break apart in a fiery mess.
Once we’d devised a way to send the massive amounts of energy we’d collect back to our
home planet, life on Earth would never be the same again, either.
Solar energy is already touted as having the highest potential of all of Earth’s other
renewable resources - but it only accounts for about 1.3% of our energy usage worldwide.
With a working Dyson Sphere, solar power would suddenly soar to being behind 100% of everything
we did.
Fossil fuels would definitely be a crude thing of the past, prompting coal and oil companies
to quickly go bankrupt but also dramatically reducing the amount of carbon dioxide released
into our atmosphere.
A Dyson Sphere would surely be the ultimate tool in tackling climate change once it’s
built (although actually building it could well prove an incalculable strain on the planet
in the first place).
Crucially, though, we’d now have total control over the solar energy we did or didn’t use.
With almost unlimited power at our disposal, we could manipulate exactly how much of that
power reaches Earth.
We could effectively “cool down” global warming, simply by flicking the right switches
- granting Earth time to recover and rebuild its atmosphere.
In this way, the Dyson Sphere would effectively work as a shade, placing Earth under optimum
conditions to thrive.
That said, there’s a darker side to having so much control, as well… because it might
not always be used for the better.
Theoretically, those working the Dyson Sphere could choose to “turn Earth off”, to purposefully
starve it of energy for one reason or another.
Or else, to boil it into oblivion!
Similarly, say the Sphere simply malfunctioned, we’d grind to a total halt without any kind
of back-up.
In much the same way as the plain old regular sun is essential to life - and if it ever
went anywhere, we’d be in serious trouble - we’d now be wholly dependent on the great
“sphere in the sky”.
For as long as it runs smoothly, though, a Dyson Sphere would trigger other shake-ups
for our planet.
Energy costs would drop significantly, or else disappear entirely, as we’d have far
more power than we’d know what to do with.
Meanwhile, though there’d be thousands of job losses in the traditional energy sector,
we’d see the rise and recruitment of millions of in-demand solar technicians and engineers
- most of which would also need to be trained as long-haul astronauts!
Lots of health problems related to air pollution would disappear, saving billions in health
costs every year…
although doctors, nurses and surgeons would likely face all new challenges in the age
of the Dyson Sphere.
The sun itself would obviously look different in the sky, too, and we’d probably be able
to look straight into it without risking our eyesight.
Rather than the glowing orb it is now, we’d see the brightness filtered through the Dyson
Sphere’s screens, beelining for Earth.
And, with so much energy headed our way, perhaps we’d even be able to create far-reaching
“light spots” during night time hours.
Although periods of genuine darkness would still of course be key - with or without a
Dyson Sphere, we’d still need to sleep!
There have been other proposed alternatives on the Sphere, including a “Dyson Swarm”
made up of multiple, massive mirrors positioned around the sun to redirect as much sunlight
as possible to Earth (as well as to various Earth bases).
But the Dyson Sphere remains the crème de la crème when it comes to harnessing the
total energy of the sun.
A super-structure to signal that humanity had mastered its own star system, it’d grant
us complete control over how, when and why Earth uses power; it would have the potential
to rewind global warming and put a stopper in climate change; and it’d significantly
alter even the sky above us.
And that’s what would happen if we fitted the sun with a Dyson Sphere.
What do you think?
Is there anything we missed?
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