Posts tagged moons
Suppose we have an Earthlike planet, with a rocky moon orbiting it. Under what conditions would dark lunar maria form on its surface, and would they always be on the side facing the planet? For Ear...
I am attempting to create fictional, stable P-Type binary system, featuring a gas giant in a stable orbit, with a habitable Earth-like moon. "Is a Jupiter-sized planet plausible in a habitable zone...
Say you have a planet and the planet has a moon: could the moon have visible satellites as well? I don't mean a gas giant planet, I mean something habitable by humanoids or humans. Will the moon'...
I am trying to figure out how to make a moon (75% of Earth size) of a gas giant habitable. To give an idea of the technological level, here are technologies the colonists have access to: fully a...
One of the worlds I'm building has three moons in 1:2:4 resonance, with the full moons syncing up once a cycle, meaning all three are full at different times but at the same time when the moon with...
I'm making five habitable planets the size of earth as moons for a gas giant the size of Jupiter. Then I want to add many more smaller moons, Our Jupiter has 67 moons, I want as many small moons...
A terrible virus has made most of the populations and government officials of the largest superpowers on Earth stark, raving mad, without depriving them of their intelligence. They have decided t...
Back home, Earth's moon is 2159.2 miles wide and orbits 238,900 miles from its parent. But let's pretend that the moon is 2500 miles wide and orbits 200,000 miles from Earth. Would the nightscape...
The idea is to have a number of artificial, spherical satellite to have sort of a "spiral" orbit around a Ringworld, such that the inhabitants of each of a number of ring sections see a moon in the...
It's Earth and the moon with all parameters as they are in real life with one exception, the moon is twice as reflective as usual. Instead of an albedo of 0.12, the moon has an albedo of 0.24. This...
This concerns a habitable, earthlike moon orbiting a gas giant, which is not tidal locked, and has an elliptical orbit eccentric enough to avoid frequent deep winter freezes (the freezes do happen,...
I'm thinking of a world where the earth's moon is densely crowded with dark materials. Solar power plants, dark buildings covered with radiation shielding, large dark open pit mines etc. Imagine th...
Consider a rogue planet, moving in a region of complete void absent any type of star (they all burned out). It is orbited by an artificial moon which shines and serves as the planet's sun. However,...
I'm curious about the impact of having a moon composed primarily of a material with a strong optical property: calcite, diamond, glass or something else similar. Would the traditional spherical sha...
I've been watching the recent news about the close pass of the interstellar object 'Oumuamua'. It apparently passed as close to us as 60 times the distance between the Earth and the Moon at it's cl...
After seeing this question, I wondered what weapon of choice (and, logically, the grand scale of energy amount) is needed to shatter the moon. Let's take our moon, the Moon, the natural satellite o...
I was reading the Q/A on water as radiation shielding. The prime answer went in to detail on the cost to lift water from Earth which is cost prohibitive, but how feasible is it to get the water fr...
Maybe it was a trick of the light or a strange cloud, or just not enough sleep. A couple nights ago I could have sworn that thin crescent moon flickered. Which led to an interesting question - wh...
Ghyesh is an Earth-like habitable moon that orbits a gas giant in a system with a sun significantly larger and hotter than Earth's. Both the gas giant and the sun emit an equal level of heat to the...
I'm building a world which is 50% covered by the sea. For approximately half the year, the sea covers one hemisphere; for the other half it moves to the other hemisphere, leaving the first a dry se...
EDIT: Yup, totally misguided here: http://www.physlink.com/Education/AskExperts/ae429.cfm Drifting away. So, no lunar catastrophe for me (without some other handwavium) I've read somewhere tha...
Section 1: Non-Duplicate Proofs. Section 2: Background, THE QUESTION, and Useful Info. Section 3: Other cited ways of preventing. Section 4: Sources and Additional Resources. Section 5: TL;D...
I saw this video a while ago, and recently it's gotten me thinking. Towards the end of Artifexian's video on gas giants and habitable moons, he mentions the idea of having 2 habitable moons in a ho...
This planet I am proposing is approximately half the size and mass of earth and has two moons. The moons are respectively 1/8th and 1/10th of the size of the planet.The moons orbit the planet at di...
If a tidal locked terrestrial sized moon with 0 eccentricity, 0 incline, and was orbiting .01 AU away from a gas giant with 12 Jupiter masses (which would have approximately the same radius as Jupi...
Is there any feasible way for a satellite to have a long lasting higher spin orbit resonance than 1:1 (tidal locking) BESIDES having an eccentric orbit, having its own satellite, or being severely ...
Inspired by this article about the Kepler-enabled search for life-supporting moons, I came over here to learn more about the concept. I found this very complicated answer to a very complicated que...
Really can't believe I have to edit this in, but this question has no bearing on our current use and generation of nuclear energy on Earth. There are dangers to nuclear energy generation, or we...
I was trying to make an interesting moon of a gas giant similar to Jupiter with a liquid ocean of water. The moon orbits in the equivalent orbital space of Io and is about twice the size of Mars. T...
Supposing there is a system of several (four to twelve) celestial bodies which are orbiting a star. In this system of bodies, each body is similar enough in size that no single body has a dominant ...
Prima walked out to the observatory's main deck. There, as she had expected, Secunda was sitting in the grass, looking up at the stars. "Pretty, isn't it?" said Secunda, as she craned her n...
My titled question was, can a planet without one or more moons be habitable? In more depth, how would that planet be affected overall, without the moon to affect the tides and without providing li...
So my story takes place on a moon orbiting a gas giant about the size of Jupiter and I was wondering if it was at all possible for a planetary ring to exist beyond the planets Roche limit. I get th...
We have a pretty good idea of what attributes a planet would need to sustain life and one can imagine how life might develop on a planet, even in difficult environments. I find it extremely diffic...
Since we just had an eclipse, I began to think: what would it look like if a planet had rings and two moons? Now, there are two solar eclipses going on at the same time! What would the sky look l...
I am writing a sci-fi novel in which humanity has colonized a majority of the solar system, and a few minor colonies on nearby stars. Although calculating mass and gravity on individual planets and...
The recent total eclipse, got me thinking about how it would look in my world. I have a earth-sized planet with a ring system, a couple of small moons and 1 or 2 bigger moons. How would a planet...
Moon's surface is about thirty million square kilometers large. That's a lot of plastic, but no bigger effort than many other terraforming projects we have discussed. Description: A global bubbl...
I have a homebrew setting with a moon that has some specific features orbiting an Earth sized planet, and I'm trying to find out how these features would affect how the moon looks from the surface ...
For a gas giant to have a habitable Earth-like moon, in a P-type circumbinary orbit with the stellar classes of the 2 stars being A7 type III and F2 type IV separated by a distance of 2AU to 3AU, w...
I got inspired by a recently posted question dealing with an artificial magnetosphere to protect Martian atmosphere during and after terraforming. Earth's magnetic field does funnel solar particle...
My story takes place on a moon in orbit around a Gas giant. The moon has 0 tilt relative to the sun but the gas giant it orbits does have an eccentric orbit around its parent star. (it has an orbit...
I was just reading this question, which just got me thinking about whether evidence of civilization would last longer on the moon. Civilization What sort of civilization am I talking about? I'll ...
Say in an alternate timeline, Earth developed with more moons. Many, many many more moons. In fact, it developed with the absolute maximum amount of moons a planet of its size and mass can physical...
BACKGROUND: I have been working on a game called Rise: The Vieneo Province. Vieneo is a terrestrial moon (all details can be found here) but we have an atmospheric composition we arrived on from ...
The world I am envisioning is a rocky planet with oceans, plate tectonics, atmosphere, and several other similarities to our globe. The mass and size is roughly equal, but its moon is orbiting much...
Okay, so admittedly I was going for a title that was a bit more catchy than the actual question, but not by much. On a technical level, the real question is "Feasibility and challenges of why a la...
Fo my question, I'd like the moon to orbit around a saturn-like planet without rings. This moon would be located at a million kilometers away the host planet. the moon's size would be about 12 000...
I've already asked a similar question but i'd like more details. This moon would be orbiting around a saturn like planet without rings. The host planet would be located in the habitable zone, allo...
As the moon is tidal locked, she is always showing the same side turned toward Earth. How could I give her a little rotation, allowing us to see the other side, without destroying the earth's curre...
