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Questions tagged [the-moon]

Questions about Earth's Moon. Also for questions about spacecraft, manned missions, potential missions, etc. related to Earth's Moon.

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825 views

Who does these mesmerizing simulations of the phases of the Moon? And how?

It's lunar new year here and people will be lighting fire crackers and launching bottle rockets off and on until dawn, so I thought I would read up on it. EarthSky.org's Moon Phases update Your new ...
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0answers
146 views

How might the Lunar X Prize contestant spacecraft navigate their descent from orbit, to landing?

EDIT: Please note the following items: The Mission Requirements for claiming the Grand or Second Place Prize include the following: Landing – A team must land its craft on the surface of ...
2
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0answers
69 views

Are there “rover-friendly region maps” for the Moon?

Rover missions are hard - you need to put them down somewhere where they can safely drive around and measure (hopefully a variety of) interesting things. While there has been quite a laps in wheeled ...
8
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1answer
768 views

Constant lunar sub-surface temperature

On Earth we have the idea of constant ground temperature. Builders in North America think of it as 55 degrees at 5 feet down (not quite true, but close enough). At the surface it varies with the day. ...
2
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1answer
475 views

Lunar Polar Orbit

With all this talk about lunar bases being at the poles, especially Shackleton Crater, I was thinking about the navigation. I am assuming that the lunar landers would stay there and ferry people & ...
5
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1answer
379 views

Why is the crust on the near side of the Moon thinner than on the far side?

Why did the Moon form differently on the near side and the far side? The near side has many mare, where the crust was thinner and lava came out after the moon was impacted by meteors. But why was ...
6
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2answers
2k views

Can we use a rail gun on the moon to launch stuff directly to mars?

Quite a bit has been written about railguns launching stuff to the earth. But has any work been done on using the moon as a pit stop between the earth and mars.
3
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1answer
116 views

Chemical resources on the moon in relation to human occupation

Suppose large settlements are established on the moon with lots of people and industrial activity. Based on what we know, what chemicals that are needed for human life and industry might be lacking? ...
0
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2answers
179 views

Details of Apollo 11 video transmission [duplicate]

NASA has the video of Neil Armstrong on the moon. I'm interesting in the technology how the signal was created and transmitted. There are some details about it in Wikipedia but I'd like to know in-...
-1
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1answer
159 views

Destination Moon vs Mars [closed]

Why is there no talk (that I hear) of starting colonies on the moon? The main drawback I see to the moon is the lower gravity (~one sixth of earth vs ~one third on Mars), but that could be addressed ...
0
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1answer
177 views

Is moon all natural? [closed]

I really like the science and space related thing and I was reading somewhere on the internet that the Moon is set in place 4.53 billion years ago. So my question is Q:- Is Moon all natural? or is ...
29
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7answers
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Why weren't Saturn V and the Soviet N-1 Moon rockets made larger in order to simplify Lunar missions?

During the Apollo missions the Lunar lander was separated, turned around and docked during flight. And the command module was left in Lunar orbit during the surface mission. The Soviets planned to ...
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0answers
80 views

Detection of micrometeoroid impacts on the lunar surface using thermal imaging?

For a student project we are looking into the possibility of detecting micrometeoroid (micrometer-size) impacts on the lunar surface with cubesats equipped with a thermal imaging device. We have found ...
3
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3answers
514 views

curious to know about artificial satellites orbiting moon

I took this pic on 16 th November 2016 two days after supermoon using a small telescope and accidentally captured some sort of satellite pic along with the moon.i am curious to know howmany such ...
3
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1answer
303 views

Mapping the moon: how to use the Lunar Reconnaissance Orbiter (LRO) image data?

what's the meaning of Scaled pixel width and scaled pixel height of LROC EDR image obtained by LROC image search tool?
0
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2answers
481 views

Why are there so many satellites around the moon if they are blocked out of radio communication half the time?

They state there are about 500 or so satellites orbiting around the moon. However according to NASA back when they said we landed on the moon, when the astronauts orbited around the dark side of the ...
1
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3answers
279 views

What does it (actually) mean when spacecraft are “intentionally crashed” on the moon?

This List of Artificial Objects on the Moon lists 21 objects as "intentionally crashed". Because of the moon's lumpy gravity due to sub-surface mass concentrations most low lunar orbits will be fairly ...
3
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2answers
381 views

Moon atmosphere after long human presence

What might happen to the lunar atmosphere after a time of major human presence or activity on Earth's natural satellite? After hundreds of touchdowns and flyoffs and disturbances to environment?
3
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2answers
658 views

Why did the Apollo program become a MULTIPLE human landing program?

How did JFK's promise of landing one man on the Moon grow into a whole series of landings of 12 men on 7 missions, with even more planned? Given the motivation of the program, shouldn't Apollo have ...
3
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1answer
298 views

Delta IV Heavy trans-lunar injection mass

What is the mass capacity for the Delta IV Heavy for a trans-lunar injection? Or is there a way to take its capacity to GEO or LEO and substitute it into a formula which would bring the approximate ...
4
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5answers
3k views

Drone Racing on moon

What kind of propulsion method are known to man that can be used for drone racing on moon land and sky(near surface) ? What role moon atmosphere might play?
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2answers
267 views

Atmosphere on the Moon

Question: How would you make a breathable atmosphere in an artificial closure on the Moon? I originally thought that simply obtaining water from the Moon, sending an electrical current through it to ...
16
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6answers
7k views

Can a nuclear detonation on Moon destroy life on Earth?

If a nuclear weapon is detonated on the moon it would launch debris into space. The debris would then fall to earth like asteroids. Would this impact wipe out life on Earth? In other words, are our ...
6
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3answers
701 views

Using command module as a lander

Question: Why doesn't NASA or SpaceX use the command module as their lander, instead of having another spacecraft as the lander? I was playing Kerbal Space Program the other day, and noticed how many ...
2
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1answer
1k views

Calculating positions of Moon's ascending and descending nodes from ephemeris files

I am trying to find the position of planets and moon at any specific date which I was able to find using the JPL ephemeris ASCII files. I am however stuck now at finding the positions of the moon's ...
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2answers
334 views

synchronized orbit between Earth and Moon

Is it possible to have a synchronized orbit between the Moon and the Earth, using the gravity of both bodies to hold its position (with some assistance, since the Moon's orbit is not circular). This ...
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0answers
37 views

Why put a telescope on moon? [duplicate]

According to this report: As a follow-on mission to India's first space X-ray observatory, ASTROSAT, ISRO is planning to set up a telescope on moon.ISRO chairman A S Kiran Kumar said that the ...
2
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1answer
167 views

What would be the procedure to colonize the Moon? [closed]

If you want to colonize the Moon, and have a self-sustaining economy, then what are the procedures that you would have to take? For example, what are the priorities you want to set straight and do ...
2
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2answers
235 views

Burns for EML-1 to LLO

Wikipedia gives 0.64 or 0.65 km/s for going from LLO to EML-1 or back. I would like to know what the delta v of the specific burns involved are, and if my initial calcs are close, I don't see how ...
6
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2answers
546 views

Where/how do I view the Chang'e 2 lunar map?

"In February 2012, the Chinese government released a complete lunar map constructed from Chang'e 2's data, claiming that it was the highest-resolution map of the entire Moon yet recorded." Source: ...
6
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2answers
598 views

How much modification would Dragon 2 or Red Dragon require to serve as a lunar lander?

How much would Dragon 2 or Red Dragon need to be changed to act as a lunar lander? What I mean is not just landing but also lifting off from the Moon's surface to a specified orbit to dock with ...
20
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4answers
18k views

How was it possible for the Apollo 11 to film and take pictures with such radiation?

There's plenty of people who said it would have been impossible for the astronauts in the Apollo 11 to film or take pictures in the moon due to the high radiation there's in the moon because of the ...
78
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4answers
14k views

How did Apollo 16 capture this full photograph of the Moon's far side?

Apollo 16 famously photographed the far side of the Moon, as seen below. This seems odd to me. Apollo 16 orbited the Moon at an orbit of only 100 km. It seems too close to get this kind of a ...
3
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1answer
296 views

Could the Moon be terraformed by outgassing its oxygen?

The majority of the Moon's mass is oxygen. With energy it could chemically be liberated from its silicon et cetera compounds and be turned into oxygen gas. Given its low gravity, lack of magnetosphere ...
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3answers
148 views

What would be the challenges of a non-rotating tether orbiting the Moon?

There are examinations of lunar tethers going through the EML1 point, and rotating tethers in various orbits of the Moon. But I haven't seen an examination of a tether in orbit that doesn't rotate. ...
16
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2answers
8k views

Is it easier to get to and from the moon than to the bottom of the Mariana Trench?

The Mariana Trench is the deepest part of the world's oceans. To date only three people have reached the bottom and returned to the surface alive. 12 People have traveled to the surface of the Moon....
6
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1answer
313 views

What specific impulse can I expect from iron powder produced from lunar regolith?

Getting rocket propellant from other sources than Earth is by many viewed as an important step towards further exploration of space. One such source could be our closest neighbour, the Moon. The ...
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2answers
269 views

Can you launch a probe to the Moon using a laser propelled craft?

Take a very light object, propel it with a laser source on Earth at a constant acceleration. Can this object reach the Moon? Could this be more reliable than a rocket? (supposing solar panel energy ...
9
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1answer
2k views

Where is Luna 1?

Luna 1 was the first attempt by the Soviet Union to crash land into the surface of the moon but narrowly missed after a programming error becoming the first man-made object to escape Earth's ...
4
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1answer
204 views

Soviet equivalent to Lunar Orbiter Program

NASA launched Lunar Orbiter Program in an effort to map Moon's surface, choose landing spots for Apollo missions and acquire images for landing simulator. Did USSR have similar program? Luna 12 seems ...
7
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1answer
715 views

Are rocks on Mars or the Moon the same as rocks on Earth?

Would rocks on Mars or the Moon be the same as rocks on earth? Or would the lower gravity mean they would not be as dense or strong? Or because you wouldn't have plate tectonics would you not find ...
12
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1answer
2k views

From which Apollo mission is this audio sample?

I found this page where Evgeny Molotov, former head of the Research institute of Space instruments, plays supposed intercepted communication of unknown Apollo mission. Can anyone identify from which ...
4
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1answer
295 views

When estimating radiation doses inside a lunar habitat, what assumptions are made as to shape?

The current estimate for how much shielding is needed for a long-term habitat on the Moon is a minimum of 700 g/cm2 of regolith, and 1000 g/cm2 for the levels at sea level on Earth. (The radiation ...
5
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1answer
367 views

What is the model name of video camera that filmed the lunar lift-off?

The timing is supposedly pretty interesting also, but that is not the question. I'm asking about the lunar lift-off. I'm interested in knowing if it was also a Hasselblad video camera, if that even ...
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3answers
949 views

Why not land Red Dragon on the Moon?

Musk has said that the capsule was designed to land anywhere in the solar system. As doubtful as that sound, I can't think of any reasons preventing them from landing on the Moon. Wouldn't it make ...
3
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1answer
507 views

Could “Asteroid Redirect” make the moon more dangerous for astronauts for a long time?

The proposed Asteroid Redirect Mission would capture a small astroid, then tow it back to the moon and place it in orbit - in a bag - if I understand correctly. I'm all for creative thinking applied ...
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2answers
634 views

Is there any possible way to reduce the cost of a manned mission to the Moon?

Say for instance if we were to build a base on the Moon, how could we possibly reduce the cost to send the parts and materials into space and off to the Moon.
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3answers
542 views

What's required to construct a space port on the Moon or Mars?

It is sometimes suggested that space ports, or at least launch pads, should be constructed on the Moon to support water exports and on Mars to support large scale exploration and settlement. I get the ...
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5answers
3k views

Would a lunar telescope provide a significant improvement over terrestrial based equipment?

As I understand it, the moon makes for an ideal location for a telescope because it offers environmental factors that are unlike anything achievable on earth: A lack of atmosphere, light pollution, ...
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2answers
564 views

What actually happened here with a satellite, the ISS and the moon?

I can't follow exactly what happened from this string of tweets - I'm not really twitter-literate. It seems like there was a predicted conjunction of the ISS with the moon, and an actual video of what ...