Skip to main content

Questions tagged [space]

For questions related to outer space, stellar systems, stars and other astronomical phenomena.

Filter by
Sorted by
Tagged with
4 votes
2 answers
64 views

How to prevent ice caps from forming on cold planets?

I am currently working on one of the planets in my system, called Opea. Opea is a roughly earthlike planet in the furthest edges of its star's habitable zone (receiving half the sunlight as Earth), ...
Dione Moolman's user avatar
0 votes
1 answer
104 views

How would a monster be part of a planet's core? [closed]

Okay so I know this absolutely isn't possible but what is the most likely way this would be possible? This idea is also very much still in progress but I think asking this would help. I'm thinking of ...
racinu's user avatar
  • 11
20 votes
6 answers
4k views

Stealth In Space Calculator

I want to make a calculator that can determine the range at which spaceships will be detected against an infrared detection system. Figuring out how "stealthy" a ship is is mostly a matter ...
Nosajimiki's user avatar
  • 95.2k
0 votes
0 answers
47 views

How do I find the correct planetary spacing for my red dwarf system?

I have a system with a K6.7V star at 0.585 M☉. The planetary system has 7 orbits -- A tiny, rocky planet at 0.043 AU with a mass of 0.0465 M⊕. A tidally locked, habitable, water world planet at 0.34 ...
Aster's user avatar
  • 355
1 vote
1 answer
120 views

What information should be displayed on realistic & intuitive tactical sensor screens for space warfare?

I've thought about space warfare and seen how sensor information has been displayed in various Science Fiction franchises and been left disappointed. For our future space forces we need screens which (...
Jim2B's user avatar
  • 28.7k
3 votes
3 answers
175 views

Is it viable to broadcast a signal and be detected within starsystem distance?

Is it viable to broadcast a radio/EM distress signal from a space vessel that can be detected within a star system? Think of an unexpected distress signal i.e. the receiving apparatus shouldn't ...
Fernando D'Andrea's user avatar
4 votes
6 answers
619 views

Is there a reason why computers of the 1920s-1980s look the way they do? [closed]

Good day all. I'm currently penning a document for my worldbuilding project that deals with the aesthetic (or rather design language) of the world's current level of technology. For reasons ...
FrossD's user avatar
  • 201
7 votes
8 answers
378 views

What's a semi-plausible 24 hour planetary sterilization look like?

In my setting, there is a type of airborne fungal spore that can infect all living matter, and a Star Wars Galactic Empire style/sized faction that wants to sterilize planets with this spore ...
ThunderSnug's user avatar
1 vote
2 answers
211 views

I have a world with two moons, and I was wondering how often they would both be full at the same time

As I said in the title, I have a world with two moons. One has an orbital period of 17 days Earth days (Moon 1) while the other has an orbital period of 57 Earth days (Moon 2) and the planet they are ...
Jack Kibatsume's user avatar
12 votes
14 answers
2k views

What kind of alien technology would make space colonization viable?

This isn't about what kind of technology would make spaceflight easier, this is about what kind of a discovery would incentivize world superpowers to aggressively invest in spaceflight. I'm asking ...
TerranGames's user avatar
12 votes
5 answers
7k views

The rotation of the sun's core doubles in speed every 10 years. How many years before the situation turns apocalyptical?

I'm asking this because I'm writing a fictional story where I need a doomsday scenario that means humanity must escape the earth. The timeframe that would fit the plot of the story would be in the ...
ElectronicToothpick's user avatar
-5 votes
1 answer
97 views

How much energy would you need to open a portal and maintain it? [closed]

How much energy would you need to open a portal and maintain it? And more importantly, what would the infrastructure look like? For example: Would a single nuclear reactor be enough, or would you need ...
supremechad's user avatar
4 votes
4 answers
324 views

Is there a way to offset the gravitational waves created by breaking cosmic strings?

Assume a science fiction setting. An advanced civilization can change astronomical phenomena. They activate a cosmic string around 10 light-years away from the solar system and break it. The ...
Tara Kara's user avatar
6 votes
2 answers
987 views

How to avoid Kessler syndrome on a Dyson sphere

Kessler syndrome is a chain reaction where satellites and debris collide with each other, eventually resulting in the obstruction of space and its unusability. Imagine we had the same situation around ...
koi's user avatar
  • 431
6 votes
3 answers
814 views

Could a Chthonian planet develop life?

Premise: Can a Chthonian planet develop life? The questions is much less if it could develop living organisms, but more if it can develop the building blocks necessary for organic life: An atmosphere, ...
MarsMagnus's user avatar
10 votes
2 answers
2k views

Engine most likely to be available in the next 80 years to accelerate a craft at 1g for 4 weeks

I posted this in Space SE, but someone suggested I also post it here. So here it is! I am wondering what type of engine would most likely be available in the next 80 that can constantly accelerate a ...
Tom's user avatar
  • 203
1 vote
0 answers
107 views

what shape would a planet entirely dedicated to watching be [closed]

If I have a planet fully dedicated to watching (think the Eye from Magnus Archives) what shape would allow for constant observation of the whole planet from some sort of tower
Overflight's user avatar
7 votes
5 answers
2k views

How much mining can we get out of Pasiphae?

Pasiphae is an irregular moon of Jupiter in a retrograde orbit. It's probably an asteroid capture and is only about 60 kilometers across (compare to Europa's 3121.6 km diameter). Suppose that I set up ...
controlgroup's user avatar
  • 4,816
4 votes
1 answer
100 views

Feasibly of a Neptune-like planet in the habitable zone

Is it possible for a Neptune-like exoplanet, that is initially positioned beyond the frost zone of its star system, to undergo a migration process that relocates it to the habitable zone? Additionally,...
asteroidbelt's user avatar
12 votes
12 answers
10k views

Why isn't the Solar System infested with space pirates?

In the universe in question, interplanetary travel has just about been perfected: a type of fusion reactor that doubles as an engine can produce large thrust on account of the extremely high exhaust ...
controlgroup's user avatar
  • 4,816
5 votes
2 answers
225 views

Life in the vacuum of space: What if we looked in the wrong places?

Forget space whales, forget star-trek-style creatures like the crystal entity, forget space creatures so massive that they have their gravity to hold on to an atmosphere around them. The issue with ...
Christmas Snow's user avatar
11 votes
11 answers
3k views

What would space equivalent of trucks look like? [closed]

I'm writing a story and the peoples' given profession is basically "space truckers": delivering small-to-medium containers of cargo across long distances in the galaxy. Because the journeys ...
E. Delaney's user avatar
4 votes
1 answer
155 views

Could a planet be ejected from a system by a rogue planet? (possibly in a binary pairing)

Assuming an earth-like Solar System with an earth-like planet, would it be possible for a rogue planet travelling at a high speed to disrupt the earth-like planet's orbit so as to leave the solar ...
Dova's user avatar
  • 143
6 votes
4 answers
1k views

Triple stage combustion light gas gun for orbital strikes

I've read that a triple stage combustion light gas gun can fire for a muzzle velocity of 12km/s. That's faster than the escape velocity needed to escape earth's gravitational influence.Thus, im going ...
Vexorr's user avatar
  • 81
18 votes
5 answers
4k views

Which Law Enforcement/Government Agencies Would Be Called to Respond to the Crash-landing of a UFO?

I'll keep this brief: I'm not too well versed in secret government protocol nor have I read enough sci-fi books on this type of matter. But simply put, in my story, a series of UFOs crash land around ...
user avatar
14 votes
7 answers
5k views

Can we hit the spaceship

Setting: close to present day. Aliens in ships about the size of the Pentagon are detected at about 10 AU, moving at about 100km/s, and will therefore take about 6 months to arrive. Realistically at ...
BenRW's user avatar
  • 2,001
5 votes
7 answers
2k views

What would the effects of a space based laser weapon system capable of tracking and destroying any projectile posing a threat to human life?

Imagine a constellation of satellites equipped with sensors capable of identifying any object posing a risk to humans and targeting it with lasers to neutralize it. The constellation covers the entire ...
Michael Horwitz's user avatar
7 votes
4 answers
2k views

Reality Check: Meteor Shower buried supermetal in the earth's crust, that is now being mined out

Centuries ago, a localized meteor shower deposited rare "supermetal" in the side of a mountain range. Due to the force of the impact, it created a pockmarked area with the metal at varied ...
LoganP98's user avatar
  • 1,270
4 votes
1 answer
113 views

Space station maglev junction design

I'm designing a city building game in a huge 3D (without any notion of "top" or "bottom") space station (or rather, a space city). There are various functional buildings (vertices) ...
SOFe's user avatar
  • 398
4 votes
2 answers
153 views

How to increase the structural integrity of comets (for the purpose of moving them)?

Suppose there is a comet of radius 500m made of mostly ice, with the rest being rock, dust, and other frozen gases. The comet is being hollowed out in order to use the water as reaction mass (giving ...
theogonzalles's user avatar
1 vote
2 answers
173 views

Can you climb a ladder into space? [closed]

Can one climb a ladder into Space? If you have a heavy sphere traveling in Earth's orbit and attach a super-strong, superlight cable to it, down to Earth, could you travel via some sort of carriage ...
Hvati's user avatar
  • 29
3 votes
1 answer
211 views

How much liquid hydrogen is required to veer a manned probe off course into an escape trajectory in deep space?

I am working on this horror-scifi story based on the lost cosmonauts theory, where the Judica-Cordiglia brothers detected an SOS from a manned probe veering off into space before Yuri Gagarin ahem... ...
Alastor's user avatar
  • 3,422
9 votes
3 answers
3k views

What would it take for a spacecraft to travel to the sun's nadir and stop?

In a science fiction future universe, spacecraft routinely travel from a distance "above" a star's north or south pole to rendezvous with planets orbiting in the star system's orbital plane. ...
Scottoooooo's user avatar
17 votes
7 answers
2k views

How well would various forms of data storage survive in the vacuum of space?

In my story, some personal effects get jettisoned from a spacecraft airlock. Some time later (months to years), other characters discover one of these items drifting in space. It holds information on ...
eyelash's user avatar
  • 401
11 votes
7 answers
2k views

How can we have a three-way space race?

I want to have a setting for a thing I am doing set in a world with a three-way space race between countries X, Y, and Z. Each country has a space program roughly on par with the 1960s US and USSR. ...
Goodn_plenty's user avatar
6 votes
1 answer
181 views

How to calculate the expected rotational speed of a star

I am working on fictional stars, and I want to have as many points about them as I can, and most things I found relatively easy, except for rotational speed. I am not sure exactly how to find at what ...
DanceroftheStars's user avatar
0 votes
2 answers
89 views

Auroras of a planet around an active M7 red dwarf

A planet the size of earth around a pretty active M7 red dwarf (think of M to X level flares almost every day) has a decent magnetic field of 0.5-0.8 Gauss, orbiting at a distance of 0.0443AU, with a ...
Fox Studios's user avatar
8 votes
7 answers
2k views

Expanding a modular space-station for 100 years

The Mir, ISS, Tiangong, Skylab, the numerous Salyut-missions...Space-stations are one of the most impressive and interesting feats of modern engineering, which in my opinion, makes it even more tragic ...
NimRad's user avatar
  • 1,222
2 votes
2 answers
303 views

Can a Super-Earth have a large moon?

I'm writing about a Super-Earth which is habitable and has a large moon, but I want to get one thing out of the way: can a Super-Earth have a large moon? Wouldn't the Super-Earth pull on the moon, ...
Jerry Robinson's user avatar
5 votes
3 answers
897 views

Catching a fast slug of metal in space

You have a mass driver which throws a 1 kg slug of iron at your spaceship. The slug reaches your spaceship and at that time it is going 30 km/s relative to the spaceship. You intend for the spaceship ...
causative's user avatar
  • 7,302
1 vote
1 answer
103 views

Is it possible to mine a close asteroid without being noticed? [closed]

Technology level, close future. A scientist observing 101955 Bennu calculates the rotation it should have according to the Yarkovsky–O'Keefe–Radzievskii–Paddack effect and finds out that it does not ...
FluidCode's user avatar
  • 3,783
4 votes
5 answers
2k views

The interplanetary cold war

A cold war, the tension between well-armed powers that doesn't directly lead to an all-out war, but to an era of tension, espionage, proxy-warfare and propaganda. In our own world, the most famous ...
NimRad's user avatar
  • 1,222
14 votes
9 answers
4k views

Can lenses defend against lasers in space combat?

You have a spaceship, covered in steel armor. The enemy is shooting a laser at you in pulses intense enough to vaporize the steel. But you have a brilliant idea: float a big glass lens in front of ...
causative's user avatar
  • 7,302
6 votes
6 answers
2k views

How possible is a habitable, liquid ocean-planet at temperatures below 0°C?

I plan on having an ocean-planet with a breathable atmosphere built into my current setting, orbiting its host-star (a K4v main-sequence star) a short distance beyond its frost-line, with oceans that ...
NimRad's user avatar
  • 1,222
18 votes
4 answers
2k views

Does the inclusion of common non-humanoid alien species make rare humanoid alien species more believable?

In a Sci-Fi setting, if there is a vast amount of non-humanoid intelligent life in the universe, like perhaps 20 or 30 species, would this make 4 or 5 species that look similar to each other, or ...
Connor Dawn's user avatar
1 vote
0 answers
97 views

how to decelerate small probes in space? [closed]

How could I decelerate a probe in space? I'm working on a world in an alternate near future, the first part would be (small) asteroid mining probes at ~3 Astronomic Units distance. No organic life ...
Krumpel's user avatar
  • 11
14 votes
9 answers
4k views

How to make a Stanford torus start rotating?

The notion of using the so called Stanford torus to generate artificial gravity is well known, but once you build the mega-structure how do you make it start rotating? Do you rotate somehow from the ...
Vivaan Daga's user avatar
8 votes
3 answers
323 views

Preexisting wormholes: How to find aliens?

Setting The future, but not too far. No antimatter and no teleportation. Space travel is relatively reliable, but it's not cheap and it's powered by fusion. Space travel outside of the solar system is ...
FrogOfJuly's user avatar
  • 1,138
4 votes
6 answers
1k views

How feasible are nukes as a spotting system in space?

In the semi-realistic space combat I design, the following rock-paper-scissors relation holds: lasers beat rockets rockets beat armor armor beats lasers The level of technology is not too futuristic:...
FrogOfJuly's user avatar
  • 1,138
1 vote
1 answer
173 views

How close Earth must be to Milky Way's center to undergo a modified 2012 film's scenario?

The 2012 apocalypse film features a premise that there are neutrinos from the sun that heat the Earth's core and thus leading to the end-of-the-world scenario. Inspiration Recently, a paper was ...
FrogOfJuly's user avatar
  • 1,138

1
2 3 4 5
31