Questions tagged [satellites]

For questions about satellites in your fictional scenario and world.

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25
votes
17answers
5k views

Need reasons why a satellite network would not work

My story takes place on a hot desert planet that is a colony. At some point people are out in a very hot and inhospitable area of the desert. Dust storms, high heat, constant wind, etc. Characters ...
9
votes
6answers
337 views

Detecting a Starship at the L2 Lagrange Point

Assume that an alien starship pops into existence at the L2 Lagrange point of the Earth-Moon system, behind the Moon as seen from Earth. When and how is the starship detected and recognized as ...
9
votes
3answers
2k views

What would Earth look like at night in medieval times?

Background: Aliens are debating whether to launch an invasion of Earth in medieval times, say the year 1000. They launch a satellite to orbit Earth and send pictures of Earth to see whether it is ...
20
votes
7answers
5k views

Is it possible to remotely hack the GPS system and disable GPS service worldwide?

The title pretty much says it all. I'm wondering if it is possible through "digital" means only (aka any physical disruption of satellites is not allowed) to disable the US GPS satellite ...
10
votes
3answers
470 views

Can I render satellite deployment impossible, or at least impractical, by exploiting the Kessler syndrome?

I want to render impractical the deployment of satellites by exploiting the Kessler syndrome. Why, you ask? Maybe I'm an evil overlord and I don't want those pesky satellites flying over my lair. ...
58
votes
30answers
13k views

My perfect evil overlord plan… or is it?

Me You might call me evil but the facts are I deserve to rule all of the world, everyone & everything in it. What I already have done For years I have worked in the shadows (as much as you can ...
19
votes
4answers
2k views

In a post-apocalypse world, with no power and few survivors, would Satnav still work?

Assuming: there was no power, so there was no web/internet you had a mobile phone (one of the smart ones, not a basic one) powered by solar the phone had maps downloaded on to its memory card (so you ...
17
votes
10answers
5k views

Is there a technology capable of disabling the whole of Earth's satellitle network?

Machine-based communication (and navigation) relies extensively on satellites. In the future, with the massification of 5G, more and more reliance will be put on satellites (e.g. the Internet of ...
6
votes
3answers
158 views

How can I create a new planet/satellite system that generates tides of 6-8 metres?

I'm creating a new setting for a novel. I'd like to build a world where the interaction between the planet and its satellite/satellites can generate a normal tide excursion around 6/8 metres. ...
6
votes
3answers
315 views

Effects and feasability of a modern-day Olympus and Hephestus

The time... a few years from now. On the laser-launch pad of one of the spacefaring nations of Earth, a spacecraft stands, the time until its launch counting down steadily. The launch vehicle weighs ...
6
votes
4answers
830 views

Can satellites decrease global warming?

An island nation has a lot of coastal territory and has become gravely concerned about the threat of global warming. They've decided to fix this by launching reflective satellites into orbit -- ...
4
votes
1answer
145 views

Post Kessler Syndrome GPS Replacement

If the Kessler Effect were to reach critical mass and render it nigh-impossible to put anything in orbit, allowing for some handwavery, what sort of options are there for replacement geolocation with ...
9
votes
5answers
2k views

How would a real modern day space shuttle operate without satellites or any kind of communications signals?

What role do satellites, communication towers, GPS, etc, play in the operation, and specifically the landing, of a space shuttle? If those and any other human-made things suddenly disappeared, could ...
-1
votes
2answers
102 views

Free energy in space [closed]

On earth we know that if we rotate a motor electrical energy is produced but dues to friction and absense of force the motor do not rotate continuously. But if we are in Space where friction is zero ...
-1
votes
2answers
646 views

Characteristics of a habitable satellite planet [closed]

In Habitable Planets for Man, Stephen Dole establishes that a satellite planet in orbit around a massive gas giant, (like Jupiter's Titan, I guess) would be habitable for humans. What would it be ...
10
votes
3answers
358 views

Could I use a series of magnetic asteroids to create a magnetic field for mars?

If I push a couple of magnetic asteroids into mars gravitational field, could they form an interlocking series of magnetic fields able to protect mars from solar winds? Size limits for asteroids is ...
2
votes
3answers
422 views

A cure for the 'Kessler Syndrome'? [duplicate]

For those unaware, the term 'Kessler Syndrome' refers to a scenario in which space-borne debris reaches a 'critical mass', destroying spaceborne satellites which in turn produce more debris which in ...
7
votes
2answers
421 views

Is a medieval spoon satellite realistic?

I misread an answer to My carrier pigeons have been replaced by spoons: how can I send messages?, thinking it was referring to a network of parabolic reflector dishes made of spoons orbiting the ...
9
votes
3answers
235 views

Lifetime of the Moon's moon

Imagine if the Moon had its own moon. A moon (likely an asteroid) that lies within the Moon's Hill Sphere. I have read elsewhere about the fate of such a moon. Over time due to the Moon being tidally ...
1
vote
1answer
103 views

How to disable all long range communications planet wide?

I'm wondering about ways to effectively disable all long range communications planet wide. I've looked into nuclear/emp for disabling sats, but what about other forms of long range comms? Doesn't have ...
-1
votes
1answer
108 views

Are satellite chat phones possible in the 80's?

Suppose you have a lots of funding and access to all the technology available in the free world. You also have political connection & persuasion, to get your hands on any of it, whether civilian ...
8
votes
3answers
237 views

Can space debris be used as a heat sink for re-entry?

In the world I'm building, a nuclear war and subsequent repressive chaos have led all satellites to be destroyed by the powers that be, around 10 years from now. A few years later, a small spacecraft, ...
49
votes
7answers
10k views

Can I use a trebuchet to launch satellites into space from a lunar colony?

I've got a lunar colony that struggles to obtain resources, so they're looking for ways to launch satellites into orbit without using up a bunch of rocket fuel. One plucky engineer has suggested ...
19
votes
4answers
4k views

A moon that is hard to orbit

I had a dream last night where I was coordinating a space program for an Earth-like planet, with a Moon much like our own. The Moon in the dream had an annoying quirk... The space program kept ...
34
votes
10answers
7k views

What are the most salient aspects of a decaying world caused by the disappearance of everyone? [closed]

You are a normie on 2019 Earth and suddenly you can't find anybody. You've searched for a few hours, tried spamming out emails, random phone calls - no response. What would be the most jarring ...
3
votes
5answers
1k views

Sourcing material to build a satellite network above a planet

In reference to the movie Geostorm (2017) a global network of satellites is built and deployed above the Earth for the purpose controlling weather events. Would any largely inhabited planet be the ...
9
votes
2answers
161 views

Can a fission satellite duplicate the radiance frequencies of a star?

I sometimes think about the arrogant dwarf starsmiths in the question. How to blow up a star by accident? I pose the question in the voice of the dwarf, probably because I am hungry for down votes. ...
6
votes
7answers
1k views

Would any long-range communication exist if all buildings were destroyed?

In a hypothetical situation where ALL man-made structures on earth are destroyed (including servers, cell towers, radio antennas, etc.) but anything existing underground or in space (satellites) would ...
-2
votes
2answers
206 views

How to power satellites without solar panels [closed]

Imagine a satellite orbiting around Jupiter. There isn't a lot of solar radiation out there, so it seems useless to try to power such a satellite with standard solar panels. I thought of powering ...
0
votes
5answers
322 views

GPS without geosynchronous orbit

A setting where we still have the rest of our technology, but for reasons - alien space bats, basically - there are no longer any stable orbits around Earth with an altitude higher than about 1000 km. ...
9
votes
4answers
7k views

How long will technology (satellites, GPS, Cell Phone) still work after civilization is destroyed?

If a large part of the population was killed, but the infrastructure was basically unharmed (I know it take people to keep things going, but I guess that is part of the question), how long would I ...