The Stack Overflow podcast is back! Listen to an interview with our new CEO.

Questions tagged [solar-system]

For questions regarding a star and the area comprising its gravitational dominance. While they are not part of its technical definition, it colloquially refers to the planets, moons, asteroids and other bodies orbiting the star.

Filter by
Sorted by
Tagged with
45
votes
6answers
4k views

What happens if the sun disappears and then reappears some days later?

In the Norse prophesy of Ragnarok, Fenrir eats the sun. Considering the Earth is not immediately consumed by a supernova, it must be assumed that he swallows it whole and it just ceases to exist on ...
22
votes
8answers
2k views

How would Earth-Mars trade work with a Musk-like colony?

Let's take a world that is based heavily on Elon Musk's specific ideas of Mars colonization, to whit: Launch technology from Earth evolves to be to <$100/lb cost to launch ratio, due to reusable ...
57
votes
17answers
11k views

Where in the solar system is the most viable place to put my colonists, after Mars and Luna?

Mars and Earth's moon already feature in a lot of fiction about space colonization. After these two planets, and assuming that other solar systems are too far away, what is the best place within this ...
8
votes
9answers
3k views

Could a planet be at the center of the universe, yet still have a sun?

In the past we humans thought that our planet was the center of the universe and everything revolved around us, due to science/math/astronomy and any other means we now believe that to not be true. ...
48
votes
12answers
6k views

How would a Martian colony be able to celebrate Christmas?

Accept that we had a reason to go to Mars, managed to build a colony there, and what we found on Mars is valuable enough to ship back to Earth. There is now a self sustainable colony living under the ...
23
votes
9answers
4k views

What are the possibilities of a dwarf planet orbiting opposite Earth's orbit?

I am drafting a short story about a small object orbiting the Sun at the precise 'speed' as Earth's opposite the Sun, undiscovered by us due to its position. The problems I see with this include the ...
94
votes
9answers
16k views

What could make a star green?

Stars are never green. When a star's spectra "peaks" in the green range, it also releases a significant number of waves of the adjacent colors - so "green" stars appear yellow or white. I want a ...
18
votes
11answers
5k views

What would be the first thing humans would mine on Jupiter?

Jupiter is a terrible place to be, but for a number of artistic reasons, I'd like to have my story take place there and only there. "Mining", or resource extraction by any other name, is the usual ...
13
votes
2answers
416 views

Impacts of a stellar Jupiter

In the book 2010: Odyssey Two by Arthur C. Clarke, Jupiter is turned into a star. Presumably this is done by making it more dense, so if Jupiter were to reach that density and become a star, what ...
20
votes
5answers
7k views

How would the sudden destruction of Earth affect other planets within the Solar System?

Earth is destroyed in explosive fashion by an unknown force. How does this affect the rest of the Solar System? Does sudden absence of that mass affect the orbits of the other planets at all? Let's ...
44
votes
12answers
9k views

Could two planets follow the same orbit and never “see” each other?

Imagine two identical planets planet A and planet B, orbiting the same star. Is it possible that these two planets follow the exact same "route" as they orbit their sun, but are just distant enough ...
29
votes
13answers
6k views

Can a planet have a day that's always longer than night?

This question has been rewritten to incorporate all clarifications. On Earth, half the planet is illuminated at any time (let's ignore eclipses). Axial tilt lets day lengths vary, but over the course ...
22
votes
11answers
4k views

How would an advanced civilization have constant communication between planets?

In this universe humans have advanced far enough to be able to colonize planets in our system but not enough to do interstellar travel. Earth is united and they have moved beyond countries and borders....
6
votes
4answers
1k views

How To Make an Earth with 27 Suns Work, Attempt Two: Orbital Stability

This is the continuation of a thread of related posts on a hypothetical alternate universe/Light Plane. Other posts from this thread are here: How To Make an Earth with 27 Suns Work Radiation ...
-1
votes
2answers
264 views

A Larger Venus in Our Solar System [closed]

Related to If Mars Were a Superearth In terms of diameter and mass, Venus is one step close to identical to Earth. But in this scenario, Venus is actually the size of the one exoplanet that ...
17
votes
2answers
2k views

Starbuilding: What is lacking in the logic behind Cosmos 2 star system generation algorithm?

Preamble The Alternity Cosmos II is a complement to a dice role-playing game that uses heuristics based on hard-science to 'build' plausible star systems for the Alternity game: http://www....
30
votes
18answers
6k views

Why might a valued mineral be only found on one planet?

According to an answer to a previous question, it would be comparatively impractical to conduct mining on a rocky planet when there are moons, asteroids, comets, etc. that have smaller mass, so much ...
17
votes
7answers
2k views

How do date/time systems work for an entire solar system?

The species doesn't originate from the solar system, nor do they occupy a single planet or even have any colonies on the planets. They travel around in space ships throughout the solar system Do they ...
21
votes
5answers
3k views

What are the main problems with beaming light from the Sun to Saturn?

I recently finished reading the Kim Stanley Robinson novel 2312 - set, of course, in the year 2312. Part of the background to the political negotiations and ongoing terraforming in the outer Solar ...
13
votes
9answers
3k views

What trade goods would spacers be able to offer Earthlings?

Background Moonshot entrepreneur Elon Branson funds a migration to space. Instead of spending billions of developing safe space technology, he instead finds volunteers and shoots them in to space ...
7
votes
3answers
333 views

Possibility of a civilization on (or around) Planet Nine

Could there be life on or around Planet Nine (a real-world planet in our Solar System, which has recently been discovered through indirect methods)? Of course, it probably receives nearly no solar ...
5
votes
2answers
233 views

Do stars in a binary star system fall along the ecliptic?

I am wondering about Tatooine, and was reading about binary systems here, which provided a lot of good basic food for thought. My specific question is not addressed at that link, and so I pose it here....
4
votes
6answers
920 views

A weapon to attack the Solar System

Basis We are in the universe we call our own, on the planet we call Earth, in the physics-set and known reality we assume. There is no flat-out "magic" or other things along those lines, so far as ...
3
votes
2answers
145 views

How many planets should I have in my planetary system?

I am building a planetary system, but I always thought how many planets should I have in this system. When you look at our solar system there are 8 planets. Other exoplanetary systems can have up to ...
2
votes
3answers
486 views

The view in a binary star system

I am writing a book where there is a binary system with a red and blue star. There is planet with the same properties as earth orbiting in a habitable zone around the 2 stars. The question How ...
61
votes
24answers
12k views

How could a planet have a sky without stars at night?

Is it possible for a planet in our part of the galaxy to have a night without stars? I'm looking for some kind of natural phenomena that would hide the stars, but allow the sun to rise and fall as ...
24
votes
6answers
4k views

How would interplanetary stock-exchanges work?

Today, a major company gets itself listed on stock exchanges so that people can buy a portion of the company while it can raise money. While the distances and time lags involved aren't much of a ...
21
votes
11answers
5k views

Blind spot in the Solar System

An alien spaceship the size of an Empire State Building experiences a technical issues with its cloaking device, their duty technician needs 24 hours to repair and meanwhile the alien wants to avoid ...
25
votes
14answers
8k views

How do you non-catastrophically reduce the mass of the Sun by half?

In my previous question, I asked how much mass the Sun would have to lose in order for Saturn's orbital velocity to be its escape velocity. The answer proved to be somewhat unexpected - when the Sun ...
11
votes
2answers
547 views

Stable ringworld interactivity with other solar system objects

I thought of two questions regarding ringworld structures in solar systems with results I can't assume, so I will try to describe each (assume stability): If a (toroidal) ringworld were massive ...
10
votes
4answers
736 views

What could make a star violet?

Part of a series I'm starting since the recent What could make a star green? did quite well and others could use the information here in their worlds. There aren't any "violet" stars. When a star ...
17
votes
9answers
4k views

How difficult would it be to turn the Asteroid Belt into a single body? What's the best method?

The Emperor (may he live forever) plans to visit the Solar System on a rare royal visit in ten years' time. The Bureau for Interplanetary Tidying have decided that the Asteroid Belt is an eyesore that ...
7
votes
1answer
338 views

How to fire your engines for a near-future trip around the solar system?

Background I was pondering my answer to this question. I asked myself, "Why would I only do a 45-minute burn and then float for 3 months to get to Mars?". Then I answered, "Because you only have so ...
13
votes
4answers
927 views

Is there a habitability zone between the primary and secondary stars of a binary star system?

Is there a habitability zone between the primary and secondary stars in a binary star system for a planet orbiting only the primary star at a distance less than that of the secondary star and, if so, ...
11
votes
4answers
1k views

What factors affect how many moons a planet can have?

A moon is just a natural satellite - something orbiting a planet - so I'm interested in what kind of factors influence how many moons a planet can have, and how many moons a planet will actually have. ...
9
votes
7answers
448 views

Mass transit across the solar system

It is the year 2055. Only 20 years after the devastating Third World War, humanity has united together to start a golden age. Overseen by a peaceful, ambitious, and global superpower called United ...
8
votes
3answers
1k views

Use Physics to prove Ragnarök has already occurred

This question asks what would happen to the solar system if the sun vanished for about three days, the mass and energy of the sun simply ceasing to exist. This answer (as of this question, anyway) ...
3
votes
2answers
336 views

How This Alternate Solar System Influences the Milankovitch Cycle

I have just found out that the Milankovitch Cycle, a machination responsible for the creation of the Pleistocene ice ages, has its part played partly by orbit from the entire solar system. As a ...
14
votes
1answer
319 views

Radiation Levels and Effects on Planet with 27 Suns

Other posts from this thread will be posted here: How to make an Earth with 27 suns work (Closed as a duplicate of the follow up, Attempt Two) How To Make an Earth with 27 Suns Work, Attempt Two: ...
12
votes
4answers
2k views

How close could another solar system be without adversely affecting our own?

I would like to know how close two planetary systems could be without having an adverse effect on each other. My goal is to drastically improve the chances of having habitable planets near enough that ...
12
votes
1answer
309 views

How big a population can the solar system support considering only power and living space?

The average power utilization per person is 1 Megawatt. The average living space is 1000 cubic meters per person. The average total mass in use by a person is 1000 tons. Assumptions Solar power ...
7
votes
4answers
2k views

If there was a planet where the asteroid belt is, could it have a stable orbit?

If a planet existed in an orbit where the asteroid belt is, would the orbits of all the planets be stable, and what would the climates be like on these planets? Assuming there could be a planet in ...
4
votes
1answer
150 views

Effect of Hot/Warm Jupiter atmosphere loss on Habitable Zone

Let's suppose a solar system: A main-sequence star similar to the Sun. G2V or so. A Hot/Warm Jupiter HJ with a semi-major axis somewhere from 0.5 AU to 0.0001 AU. An Earth-like planet EL with a semi-...
4
votes
3answers
323 views

Ringworlds and habitability on other planets

This is the second part of a question here that I've broken up because they are two very distinct problems. Assuming a perfectly stable ringworld: Assume a more traditional flat ringworld that is not ...
3
votes
3answers
557 views

If a colonial uprising occurred (and succeeded to some extent), what would the implications be on extraplanetary policy?

So, I ran into a problem regarding the aftermath of a colonial war for independence. What happens is the following: The scenario is this: late 24th Century, humans have colonised the Inner Solar ...
1
vote
8answers
2k views

Can a star orbit around a planet? [duplicate]

I have a story where, there's a planet much like our Earth, (only hundreds of times larger than our Earth) is in the middle of their Solar System, and around this planet there's a Sun, which orbits ...
15
votes
3answers
1k views

Hiding a solar system in a nebula

I have a planetary system with a yellow dwarf similar to our own Sun and three habitable planets. I want to hide this system from sight and long range scans in a nebula, a giant cloud of dust and gas ...
13
votes
3answers
1k views

Can two stars orbit each other but each have their own planets in stable orbits?

I'm aware that 'tatooine' worlds don't make good habits for planets, normally. From what I've read, either a planet has to orbit one star really closely, or orbit both stars from a really long ...
10
votes
3answers
767 views

Could a solar system exist inside of a nebula which is made of breathable gases?

Far, far away from the Earth, there is a nebula. An enormous cloud made of 78% nitrogen, 20% oxygen and 2% other non-lethal materials. These gases swirl around a star, and the pressure around it is ...
6
votes
5answers
533 views

Where do you put a photosynthetic Dyson sphere?

One of the answers to What could make a star green? describes a living Dyson sphere made of photosynthetic, plant-like material. What type of star or star system is ideal for a plant-like Dyson ...