Skip to main content

Questions tagged [asteroid]

Questions about asteroids, bodies in the solar system smaller then planets which orbit the sun.

Filter by
Sorted by
Tagged with
3 votes
1 answer
158 views

Could asteroid mining benefit human kind?

If we ever set out into space to mine stuff like asteroids, and utilized the resources from said asteroid, would we be a more advanced civilization (when I mean advanced I mean like building stuff ...
0 votes
2 answers
117 views

If we could mine asteroids, how would we get the stuff mined from said asteroid back to earth?

I was thinking of some contraption that would suck up the material from said asteroid and put it in some type of container thingy that would then be transported to a shuttle that would then get sent ...
11 votes
2 answers
401 views

Can we use magnetic devices to anchor to asteroids?

One of the challenges about missions to asteroids is staying attached to them when you land. Many asteroids are described as nickel/iron, and we know that both nickel and iron are ferromagnetic. Is it ...
0 votes
0 answers
65 views

How well can we predict asteroid impact location?

concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029 - wikipedia on 99942 Apophis So we can predict that something might hit ...
0 votes
1 answer
95 views

Slowing down 16 Psyche using an enormous solar sail to reach the inner planets

I am writing a sci-fi story and would like my science as hard as possible. I was thinking of using the solar sail as a kind of sea anchor. Slowing down, the asteroid would move down to the inner ...
4 votes
1 answer
147 views

Could mirrors used in a Dyson Swarm be made from asteroids in the inner asteroid belt?

In this video from Kurzgesagt they said that one would need to disassemble a whole planet to build a Dyson swarm around the sun. The video went on about mining Mercury and using the materials ...
11 votes
2 answers
298 views

Why are Jupiter's trojans even remotely stable?

The spacecraft Lucy is en route to explore Jupiter's trojan asteroids. Lucy is so named because the trojan asteroids are believed to be fossil remnants from the formation of the solar sytem. ...
2 votes
2 answers
158 views

What is the prevalence of nitrogen, phosphorus, and potassium in the asteroid belt and in comets?

As someone with a light background in controlled-environment agriculture, I'm familiar with the importance and use of N/P/K in growing useful plants. This got me thinking about how common these ...
3 votes
0 answers
66 views

Are there occurrances of monel (nickel-copper) meteorite materials?

This question is prompted by a Space.com article on the metallic Psyche asteroid - Wendy Caldwell, a scientist at Los Alamos National Laboratory, told Space.com that some of her most promising ...
13 votes
4 answers
3k views

Is there any evidence from previous missions to asteroids that said asteroids have minable minerals?

Claims about asteroid mining talk about how many resources are on each asteroid, with claims of "trillions of dollars" of raw materials. Ignoring the cost of getting to the asteroid, have ...
1 vote
0 answers
38 views

Will Ataxite be the type of nickel-iron sought for asteroid mining?

The high value metals in meteorites and asteroids - mostly Platinum Group Metals - appear associated with the nickel content (The Occurrence of Platinum in Meteorites, F. G. Hawley,1939), ie the ...
4 votes
0 answers
171 views

What could we produce with a space based industry?

The astroid belt is great place to start humanity’s journey through space. I want to know, what materials and items could be produced from asteroids. I’m mainly going to ask for useful items, such ...
60 votes
4 answers
7k views

What resources could be gained from asteroid mining that would be worth the effort?

Obviously asteroids are abundant in many of the raw materials we use today, but considering the (presumably) large expense involved in mining from asteroids it may not be worthwhile to mine some ...
22 votes
3 answers
2k views

Can we expect to find pure iron or only nickel-iron alloys in asteroids?

Relatively pure iron has more uses and potential value than nickel-iron alloys. Separating those nickel-iron alloys commonly found in meteorites and expected to be common in asteroids (Kamecite, ...
3 votes
0 answers
272 views

What programs simulate the orbit of an asteroid over long periods of time?

I am trying to simulate the orbit of an asteroid over a long period of time in order to see the change in the orbit due to a constant force applied to the asteroid. Initially, I used GMAT to simulate ...
4 votes
1 answer
182 views

What were the challenges of an exploration mission to Trojan asteroids?

There are many space probes that flew past asteroids, some came close to it, some orbited and some landed on it and took samples but those asteroids belonged in the main belt. Now, Lucy will become ...
0 votes
2 answers
355 views

If the Tesla Roadster happened to crash into an asteroid, would the asteroid be damaged?

If the car has the luck to find a rock of more or less his mass, taking the mass and speed into account, can it make a considerable amount of damage in an asteroid?
14 votes
4 answers
884 views

What are the actual legal prerequisites for extracting natural resources from asteroids by private entities?

The Moon Treaty states that no extraterrestrial property can be owned by any organization or person, with the exception of international and governmental organization. So, taking the current state of ...
1 vote
1 answer
319 views

How many companies currently specialize in (the research of) asteroid mining?

After two major players aiming at asteroid mining (not just the Moon) were bought up and repurposed, who still does follow this topic as a primary business model? Deep Space Industries was bought by ...
-4 votes
2 answers
226 views

Can Nuclear Pulse Propulsion (Project Orion) accelerate a 100,000 ton M-type (metallic) asteroid to a LEO? [closed]

Project Orion: specific impulse in the range of 6,000 seconds. For example – Starship Interplanetary (SpaceX): Max Fuel (after refueling at orbit) - 1,950 ton Fuel left after arriving at NEO asteroid –...
14 votes
3 answers
698 views

Do all dangerous asteroids first pass through keyholes?

Scitech Daily's MIT Engineers Devise the Best Way to Deflect an Incoming Planet-Killer Asteroid Now MIT researchers have devised a framework for deciding which type of mission would be most ...
5 votes
2 answers
389 views

Is any non-planetary celestial body smaller than a star known to be a spontaneous radiator?

Space is apparently filled with lots of debris that did not make a star, system, or planet. In a pinch asteroids, and comets may serve to illustrate. Asteroids are typically flagged as carbon, stone, ...
21 votes
4 answers
6k views

Does the Moon have any captured objects orbiting it?

Does our moon have any captured objects orbiting it that have been discovered, such as asteroids or other debris? If it doesn't, is it possible that it could capture them in the future, given the ...
5 votes
0 answers
174 views

Positions of asteroids in heliocentric ecliptic (x,y,z) coordinates

I would like to make positions of asteroids in heliocentric ecliptic (x,y,z) coordinates plot for a given date, like in the image below (Matsuoka N. Ryo (CC-BY 4.0)). For that I need so-called state ...
1 vote
1 answer
217 views

How long would it take before we use up all the ice in the asteroid belt? [closed]

Lets say that we have an interplanetary society using the ice from asteroids to convert it into rocket fuel, how long would it take before we have used up all the ice on the asteroids. Conditions: We ...
4 votes
1 answer
366 views

How much ice is there in the inner asteroid belt?

After asking this question (How long would it take before we use up all the ice in the asteroid belt?)I did some research to find out how much ice there is in the inner asteroid belt (Not the Kuiper ...
-6 votes
2 answers
226 views

Why wouldn't you use a star tracker in the asteroid belt? [closed]

I am in a group discussion with some people, and I told them what I wrote below as a reason why using a star tracker does not make sense for a spacecraft in an asteroid belt. Furthermore, I am curious ...
4 votes
3 answers
1k views

A Philae Lander (like) anchoring harpoons on M-Type (metallic) asteroid. Can a nail gun and the effect of Cold Welding be a working solution?

Everyone knows what happened to Philae lander (Rosetta mission). It is hard to predict the reliability of anchoring points before we know surface conditions on the asteroid. On the other hand, it is ...
3 votes
1 answer
1k views

How to maintain balance and center of gravity when pushing a 100-ton piece of asteroid?

I understand that rotating momentum around a fixed axis can help with the center of balance. But is it enough? In my case, a space tug has to burn its engine for 1 min, accelerate a 100-ton piece of ...
0 votes
1 answer
145 views

What would be the most fuel-efficient propulsion solution to accelerate a 100-ton piece of NEO asteroid towards Earth?

We need acceleration to about 300-500 m/s relative to an NEO asteroid - to get to an LEO. What is needed is the lightest package possible, that includes engine, fuel tanks, control module and ...
5 votes
1 answer
821 views

Minimum delta V required to return a piece of metallic asteroid 16 Psyche to Earth?

Suppose somebody sent a rover to Psyche 16 and found massive concentrated deposits of platinum-group metals near the surface, and turned it into a 10 ton sphere of platinum/iridium/osmium/gold alloy ...
-1 votes
2 answers
183 views

1 kiloton nuclear device to clear up debris and dust to expose the iron-nickel core for open-pit mining (on M-Type asteroids)?

My understanding is that initial acceleration from the blast and following solar wind will clear the area around the asteroid for spacecraft navigation (in reasonable time). A 2-3 kilometer M-type ...
3 votes
1 answer
293 views

Horizons ephemeris - how did they calculate that “Keplerian GM” value?

I’ve been playing with the NAIF’s SPICE library for some time (CSPICE in particular). In order to obtain the state vector of an asteroid from its osculating elements, I’m calling the “conics_c” ...
3 votes
1 answer
361 views

Gravity assist (flyby/slingshot) from an asteroid?

Could a spacecraft perform a gravity assist maneuver in an asteroid? Has it ever been done? I tend to think that the asteroid would need to be quite massive for a "significant" change of ...
5 votes
3 answers
3k views

Would an asteroid collision affect the Moon's orbit, and what consequence would that have for Earth?

If an asteroid collided with the Moon, or an atomic bomb was blasted on it, would it affect the orbit of the Moon? The Moon's gravity plays a major role in ocean tides. If the Moon's orbit changed, ...
1 vote
1 answer
223 views

On what target will TransAstra Corp's MiniBee practice its Optical Mining technique?

Space.com's NASA Eyes Wild Space Tech Ideas to Mine the Moon (and Asteroids, Too!) says: The other project is called Mini Bee and is led by Joel Sercel, founder and CEO of TransAstra Corp. Mini Bee ...
4 votes
1 answer
204 views

How different would a comet impact be vs. an asteroid impact?

If a 50 meter asteroid caused a 1.5 kilometer crater as Barringer Crater is described, how different would the impact of a 50 meter comet be, assuming the comet was 85% water and other volatiles, with ...
12 votes
10 answers
4k views

Is there an elegant method to stop an asteroid's spin?

There have been proposals to mine asteroids, perhaps after “tugging” them to a more accessible location. As well, proposals have been made to move asteroids which threaten collision with earth. ...
3 votes
1 answer
100 views

Would planetary quarantine have to be used for asteroid mining missions?

Currently, sample return missions have to follow very delicate procedures to move the sample to the return vehicle. This is incredibly complicated and may explain why so few missions have launched. ...
13 votes
2 answers
2k views

What caused the jitter in the DART video as it approached Dimorphos?

If you look at the series of images DART took as it approached Dimorphos, the asteroid jumps around a bit as you approach. Does this mean small corrections were being made right up till near the end? ...
0 votes
1 answer
389 views

Can DART/Dimorphos impact be seen with naked eye?

Can today's DART/Dimorphos impact be seen with naked eye?
5 votes
1 answer
153 views

Could any of the JWST instruments image the rings around 10199 Chariklo?

The asteroid 10199 Chariklo orbits between Saturn and Uranus. It has two rings with radii 386 and 400 km and widths of about 6.9 km and 0.12 km respectively. It is currently 15.94 AU from Earth. Do ...
3 votes
2 answers
161 views

Asteroid mining: will full asteroid prospecting require sending probes to each asteroid?

It is well known that many characteristics about an asteroid such as orbit, size, rotation and chemical composition can be obtained remotely thanks to passive techniques such as spectrophotometry, ...
2 votes
0 answers
55 views

Why would binary asteroids created from YORP spin-up tend to have mutual orbits coplanar to their heliocentric orbit?

Vavilov, et al., "Evidence for widely-separated binary asteroids recorded by craters on Mars", Icarus 383 115045 (2022) says on page 8 that binary asteroids created through the Yarkovsky–O'...
18 votes
2 answers
2k views

How can I derive an mass/size estimate of an asteroid from JPL parameters?

I'm looking for a list of objects with a semi-major axis between 0.95 AU and 1.05 AU that are probably larger than 1 km in diameter. For this, the JPL Small-Body Database Search Engine seems to be ...
8 votes
2 answers
569 views

Using asteroids as propellant source

If we could capture an asteroid or meteor, can we use it as a vehicle for space travel? From what I understand, propulsion is a result of mass flow, so we could use a rail gun configuration to propel ...
4 votes
0 answers
166 views

In what year was asteroid Donaldjohanson chosen as a target for Lucy?

Asteroid 52246 Donaldjohanson was officially named in 2015. Was it chosen as a target for Lucy before being named?
9 votes
6 answers
5k views

How could 99942 Apophis, in 2029, be captured and brought into a low Earth orbit?

I'm currently attempting to plan out a mission where, in 2029, during Apophis's close approach to Earth, a rocket is sent up to intercept Apophis and decelerate it, making it orbit the Earth. At it's ...
0 votes
1 answer
184 views

How to calculate the max mass and speed of an asteroid capturable by gravity assist?

After reading this question and the answers, I am wondering about the limits of slingshot method to capture an asteroid into a planet orbit. Is it possible to calculate if an asteroid can be captured ...
11 votes
5 answers
3k views

What processes create an object with an interstellar velocity?

An object like Oumuamua originates in a solar system. This object has roughly the inertia of everything else there. I can imagine stuff on the edge of the accretion zone for a star that...WANDER off......

1
2 3 4 5