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Questions tagged [asteroids]

For questions about utilizing asteroids, asteroids impacts and asteroids physical properties.

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How much heat would a 1km asteroid release into earth's atmosphere?

I am writing a theory for a game that is in an apocalypse. An asteroid is heading for earth and will crash into the earth regardless in this theory. It is 1km in size but due to the YORP effect it has ...
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1answer
189 views

Is it possible to divert a 1km Asteroid from Earth?

I am writing a scenario for a game that I am a fan of. It involves an asteroid heading for impact with the Earth in 2027. This asteroid's initial diameter is about 1km, but it is slowly disintegrating ...
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2answers
398 views

Could a ~150 mile impact basin form from a small object imact?

Could a ~150 mile (240 kilometers) crater form from a small object impact? So the object impacting the site of the crater is a human shape and not able to be destroyed. The location of the impact is ...
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4answers
207 views

Is it possible to hide a base in the Kuiper Belt?

With the Kuiper Belt being composed of well over 100 million objects - some grand, some insignificant - is it possible to hide an asteroid base from enemy sensors within its confines, combined with ...
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3answers
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Building a Dyson Array as an energy source

For the purposes of this question, assume that a Dyson Array is a collection of discrete solar panels or mirrors orbiting the sun, all of whom share the same orbit and have same velocity. Can a ...
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20answers
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What would be used for “coordinates” on a large asteroid?

Assuming we had a non-spherical asteroid that doesn't have a magnetic "north", how would the inhabitants define areas on the asteroid? How would they explain to a visitor to go to a very specific ...
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6answers
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Can a 15km, rapidly-spining asteroid go undiscovered until the asteroid belt is being actively explored?

What I want to know is if an asteroid about 15 KM in diameter and roughly double that in length, spinning at a significant speed, could go undiscovered until a crew of an asteroid mining ship happened ...
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3answers
206 views

Could you liquefy an asteroid to collect its resources?

Suppose you could pump a load of energy into an asteroid at a safe distance. As energy gets added to the object, does it make sense that this could be done in a way to get the asteroid to ...
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6answers
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How could someone ground a breathable synthetic atmosphere onto a small asteroid?

Let's say there are billions of asteroids in the galaxy, varying in size from baseballs to hunks of rock almost big enough to be dwarf planets. If someone wanted to set up a habitable location on one ...
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4answers
89 views

Cataclysmic cloud of asteroid bits

I am wanting my 32km x ~7.5km buried space habitat to be hit with a cataclysmic disaster which changes things from everyday life to a survival lifestyle. I would like the station to be damaged to the ...
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8answers
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What is our planetary defense capability against an Earth life destroying object?

This is World Building through a preventative measure. The Earth has been destroyed a few times in the past and it will happen again in the future, it is just a matter of time. For the first time in ...
8
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1answer
180 views

Gravity differences on asteroid with an O'Neill cylinder

In my story there is something akin to an Island Three O'Neill cylinder buried vertically into the side of the asteroid Vesta. It is 5 miles across and 20 miles long. The station is buried but is ...
4
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2answers
471 views

What would happen if a little less than half of the moon crashed into the Atlantic ocean? [duplicate]

Let's say an asteroid hit the moon and broke it in half. One half remains where the moon usually is relative to Earth, and the other half is flung at Earth near the equator, in the Atlantic ocean. ...
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2answers
956 views

A meteorite is about to ram into a planet. How long do the main characters have to leave the planet before they die?

At the end of Book 6 of my book series, a magic ritual has caused a large meteorite (around 1/4 the size of the one that caused the chicxulub crater) to ram into the small planet (around the size of ...
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7answers
2k views

Could an astronaut in a near-future space ship survive transit through our asteroid belt?

In the near future we may find cargo ships fleeing space pirates! Given that... It's a small cargo ship carrying 10 metric tons of wheat (cargo volume, approximately 13 m3). Total volume: 100 m3. ...
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3answers
310 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 ...
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3answers
93 views

Conditional deniability of a natural asteroid belt with an atmosphere?

Is it unreasonable to suspend one's disbelief that an asteroid belt naturally formed with enough mass distributed through the belt to justify the formation of a belt-wide atmosphere given the ...
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6answers
2k views

Is it easier to mine asteroids than planets if teleportation technology exists?

Inspired by comments to JBH's answer to The worlds between, the consequences of instantaneous FTL. The Premise A technology for instantaneous travel exists, making it possible to travel to any point ...
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7answers
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5km artificial planet, with same gravity as on Earth

So, the idea in a story is that in far far future there’s a trend that rich people, they are able to buy themselves planets. Tiny little planets with sizes 4-6 km (3-4 miles) in diameter. The company ...
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9answers
6k views

Could an object from space crash into Earth and set off a majority of the nuclear bombs created?

I'm currently trying to create a separate kind of Earth, without just changing my setting to a world that fits my criteria. So I'm trying to figure out a way for Earth to have a new beginning, so that ...
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7answers
1k views

Could a collision of a rogue asteroid with Pluto pull in objects from Kuiper's belt into the inner orbit without destabilizing any other Planets?

If a rogue asteroid close to the size of Pluto collides with Pluto, could this possibly cause enough disturbance to cause objects from Kuiper's Belt to be pulled into the inner orbit of the Solar ...
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3answers
131 views

Astronomical event that creates meteoroids/asteroids on a collision course with Earth?

Considering the below constraints what variant of astronomical event could create meteoroids and asteroids on a collision course with Earth? Constraints: Sustainable severity (long enough for ...
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3answers
92 views

Would a sun-blocking asteriod field be created if something big was to smash into the moon?

I'm wondering if it is plausible that a large asteroid (interstellar in origin? Or, perhaps launched from the Kuiper Belt by something big with a lot of gravity?) would be able to smash into Luna and ...
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1answer
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Would Vesta Be A Suitable Spot For Colonization

So I was thinking of using the asteroid Vesta as one of the many asteroid colonies in my future solar system. Is it a viable candidate or is there any "problems" with it. The colony would be made of ...
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2answers
236 views

How big of an asteroid could all the nuclear bombs of the world move? [duplicate]

More than the threat of nuclear war, we should worry more about asteroids destroying the Earth. For the first time we could save ourselves from that happening. Take all the nuclear missiles of the ...
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3answers
154 views

Could a giant asteroid impact break off to form a new, habitable moon while leaving the original planet in ruins?

As the title says, I'm wondering if a species could theoretically boost an asteroid near a planet for easier mining access. If this was to accidentally crash into the original planet could a habitable ...
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1answer
155 views

Do different angles of strike affect the destructive power of an asteroid?

I'm looking into the destructive power of a 5km asteroid strike, a bit smaller than the k-Pg event. How does the angle of the strike affect the destructive capability of a land-based impact. For ...
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2answers
166 views

Can ice asteroids cause an icy ship

Question If a ship went through an asteroid belt where the asteroids are mostly ice, could the ice in any way transfer onto the ship and give it coatings of ice in various places, or would there be ...
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4answers
950 views

Can the pitch and speed of an asteroid cause a less catastrophic results? [duplicate]

Notice that most of the energy is absorbed by the inside with considerable little damage to the outside. I base this question on the premise of would the Earth and asteroid would act similar. I ...
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2answers
451 views

Could you turn the asteroid belt into one giant full spectrum interferometer?

For the purpose of this post, full spectrum means a non-trivial number of frequencies within a non-trivial band. So human eyes aren't full spectrum within the visual range (each cone is wide band, ...
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1answer
84 views

What would be an approximate chance of human extinction from an asteroid crash [closed]

I am writing a story about a goddam asteroid that would crash on Earth and put an end to humanity (Yes, this is kind of sad). What are the scientific estimations today that this scenario is ...
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8answers
1k views

Would an asteroid of similar size to the one that hit 65 million years ago cause humans to go extinct?

Could humans sustain life after a k-t like extinction event? I know that a long lasting winter was a side effect then, but humans have technology to protect against cold. What other effects of an ...
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4answers
139 views

What are some of the resources a space station could produce? [closed]

I'm making a board game set on a space station near the asteroid belt. I'm trying to come up with a few resource that space station could be producing, to export to Earth. Here are some I came up ...
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2answers
137 views

What happens to asteroids when heated into a plasma?

I'm looking to build a scientifically plausible mining laser for my science fiction setting. The first approach that came to mind was a high-power laser that heats the surface asteroid until it ...
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2answers
126 views

Which asteroids are likely targets for a mining base?

So humanity has finally overcome the economic problems with asteroid mining, not to mention setting up colonies elsewhere in the solar system. Some are dragging the low-hanging fruit into near-Earth ...
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6answers
431 views

How to stop an asteroid from hitting Earth without nukes?

You are in charge of the world, with technology about the same as we have now, except that a while back the leaders of the world decided that nukes are too powerful, so they destroyed them all and ...
15
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2answers
2k views

Humanity’s first effort at moving a planet

What technology will humanity use the first time it moves a planet? In the near-ish future, humanity has colonized Mars which has since become self-sustaining and independent, as well as various ...
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3answers
455 views

What happens to the leftovers from asteroid mining?

I understand that asteroids are very very far apart, but everything I am reading about asteroid mining omits any information about what happens to the waste rock or "tailings" that would presumably be ...
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2answers
258 views

The speed and mass of this asteroid

Background: In the world of Krynn (Dragonlance) there was this worldwide catastrophe, the Cataclysm. What happened: Gods became angery to a single person, so they threw an asteroid at him, ...
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5answers
428 views

Asteroid making a hole through the crust

How plausible would it be for an asteroid impact to create a hole through the Earth's crust into the mantle? What sort of traces would such an impact leave behind? Would it be survivable by at least ...
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1answer
78 views

Measurements of an asteroid replacement

Say I wanted to create an impact similar to an asteroid with a diameter of 1.5 kilometer/1 mile with an iron core. It would be going about 18km/s on a 90 degree angle. An impact to level cities but ...
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8answers
4k views

Extremely small planet to live on

In the mobile game "The Path To Luma", the main hero travels to very tiny planets. Let's not think about where is the sun and how we leap through such small planets. What I want to ask is, if there is ...
7
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2answers
238 views

Moving asteroids into a planet's orbit to increase rotation to produce a magnetic field

I was doing research on the terraforming of planets with a solid iron core and no magnetic field and saw a few suggested ideas for starting a magnetic field on Mars that got me thinking. Most of what ...
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16answers
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What would cause the land to “rise” in a future, post-apocalyptic world?

We are in the future in northern North America (U.S or Canada). The land has "risen" (or more accurately, filled in) with several hundred feet of earth and sand and silt so that a modern city will ...
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6answers
378 views

What issues would an AI asteroid mining stations have to be prepared for?

Your company has just been contracted to develop a purpose built AI. The purpose of this AI is to control a mining station that will be anchored within an asteroid belt. The space station will be ...
3
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7answers
589 views

How to explain Earth-like gravity in small asteroids?

I'm working on a sci-fi game about conquering little asteroids (about 1 km diameter). You can go into one of them and make it Earth-like so other humans, animals or plants can live there. To do this ...
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2answers
374 views

What is the smallest planetary mass that can prevent 'me' from flying off into space?

I have a series of astronauts landing on an asteroid. I'd like to know the threshold of mass for them to not fly off into space. Specifications: Assumption is all astronauts are under 180cm, 80kg. ...
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4answers
137 views

Resources to possess, and restrict in asteroid belt

Assume 100 years from now we have established sustainable bases on Mars, to the point where a colony ship making the trip to Mars is not "breaking news" anymore. There are a few reasons to begin to ...
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2answers
448 views

Impacting an Asteroid into the South Pole

Let's say that a giant space rock (10 km) is Impacting the Geographic South Pole. If humanity is at its present-day level, what would be the climatical and technological impact on Humans and the Earth?...
3
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3answers
256 views

What direction is my asteroid coming from?

I have an asteroid. I want it to hit Earth. The best way to hit Earth is from behind the Sun, which makes it harder to detect you if you're an asteroid. Now, I have a basic understanding of things ...