Questions tagged [the-moon]

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

Filter by
Sorted by
Tagged with
2
votes
0answers
48 views

How to make diamagnetic lunar simulant that would "float" in a strong enough magnetic field? (for China's 60 cm high field simulator)

Live Science's China builds 'artificial moon' for gravity experiment says: Chinese scientists have built an "artificial moon" research facility that will enable them to simulate low-gravity ...
8
votes
2answers
818 views

How long would it have taken to launch an Apollo contingency flight?

How long would it have taken to launch an Apollo contingency flight, if, for example, the lunar lander couldn't have got back up to orbit? Could the lander have held three astronauts?
1
vote
0answers
54 views

Fuel profile for Apollo 11

I downloaded a dozen of NASA documents about post-flight analysis of Apollo 11 mission, but I cannot find a table or a plot of fuel usage and remains; Some of the documents which I found: http://www....
12
votes
1answer
1k views

Why did a solar eclipse of the sun as seen from Apollo 11 appear to have an elliptical corona?

When asked to recount an experience from the Apollo program, Neil Armstrong stated: [My] most indelible memory was approaching the moon and flying through the moon shadows so that the moon was ...
1
vote
0answers
38 views

Who is going to the Moon in 2022? How many planned missions to land something there?

How many planned missions are there that plan to land something on the Moon in 2022? Secured access to launch necessary to count, no washing-machine with bottle-rocket missions. Please include a link ...
0
votes
1answer
92 views

Where are the meteorite remnants related to the craters they've produced on the moon?

On Earth, in every crater there's usually at least some remnant of a meteorite. But with all the craters on the Moon, where are the meteorites in the middle of them?
5
votes
2answers
401 views

Approximate size of the "hut" object observed from the Yutu-2 lunar rover?

News sources (for example, the Independent, the South China Morning Post, RT, and Newsweek) have reported recently on the observation from the Yutu-2 lunar rover of a "hut" object or "...
9
votes
1answer
258 views

Time-scale for investigation of the "hut" object observed from the Yutu-2 lunar rover

According to Adam Smith writing in the Independent about the object that was recently observed in a photo taken from the Yutu-2 lunar rover: (t)he strange cube was spotted on the horizon around 80 ...
2
votes
1answer
90 views

Do reversible proton-exchange membrane hydrolizer/fuel cells exist? Have they been incorporated into a “Hydrogen Battery”?

Solar power on the Moon suffers from the month-long Lunar rotation which necessitates enough energy storage to last through the 2 week Lunar night. An alternative to battery storage would be a closed-...
14
votes
3answers
3k views

Projecting shadows, or even a movie, on the moon

Would there be a way to project shadows, or even a short movie on the moon, i.e. using the moon as a cinema screen and the sun as a projector? To be more precise, if a cubesat was launched towards the ...
14
votes
3answers
3k views

If we pick any point on the moon (except possibly the poles), is the sun visible for 13.66 days, and then not visible for 13.66 days?

The moon is tidally locked to the earth. The moon's orbital period is 27.32 days. Does that mean that if we pick any point on the moon (except possibly the poles), the sun should be visible for 13....
7
votes
0answers
86 views

Is lunar exploration going to need a whole heck of a lot of RTGs? If so, have they started firing up the RTG-making reactors yet?

The November 16, 2021 Northrop Grumman Press Release Highly specialized team to design vehicle for sustainable lunar surface mobility operations begins Northrop Grumman Corporation (NYSE: NOC), is ...
0
votes
2answers
121 views

Are valleys a good alternative to caves for radiation shielding?

Lava tube systems and caves have been discussed a lot when it comes to establishing a base on the Moon or Mars in order to protect it from the continuous exposure to lethal radiation, as well as ...
1
vote
0answers
48 views

Was Chandrayaan-1 recovered (tracked) only that one time in 2016, or are folks still keeping an eye on it from time to time?

Has there ever been probability of conjunction between spacecrafts in Lunar orbit? describes a recent maneuver of two spacecraft in orbit around the moon to avoid a potential collision: Apparently ...
2
votes
1answer
95 views

What kind of rocket design would be used for Lunar/Mars E2E travel when colonized?

If/When Mars or the moon are colonized, transport will be needed between bases. Over long distances, rovers would be too slow and traditional aircraft would not work well in thin to non existent ...
7
votes
2answers
485 views

Why did Luna 1 enter a heliocentric orbit?

The way I understood it (please correct me if I'm wrong), the easiest (least energy) way to reach the Moon it to put the spacecraft into a highly elliptic geocentric orbit whose apogee reaches the ...
5
votes
0answers
70 views

Official source discussing the stress that Lunokhod operators were experiencing?

I came across this document mentioning the high stress that the Lunokhod operators experienced when teleoperating the rovers back in the 1970s. There is a mention that driving Lunakhod 2 was ...
6
votes
0answers
44 views

Are changing regolith properties under different thermal conditions a concern for the VIPER rover?

NASA's VIPER mission will send a rover to the lunar south pole, which will drive on sunlit terrain and in permanently shadowed regions (PSRs), which are among the coldest places in our solar system. ...
7
votes
2answers
1k views

What is the deepest part of the moon on the near side?

Per title, I must emphasize that it shall be on the near side. Antoniadi (lunar crater) and Aitken basin are all on the far side. Preferrably it is also wide and large like the Oceanus Procellarum...
16
votes
3answers
4k views

What is an "octet" in the context of NASA's LunaNET Interoperability Standard? ("internet on the Moon")

The PDF Draft LunaNet Interoperability Specification, LN-IS Baseline V001 September 2, 2021 (found at https://esc.gsfc.nasa.gov/projects/TEMPO?tab=lunanet) has found its way to the popular press. 4.2 ...
5
votes
0answers
62 views

Were there backup routes planned for the Apollo LRV?

I just finished reading "A Man on the Moon" by Andrew Chaikin, an amazing read. For the missions involving the Lunar Roving Vehicle (LRV, Apollo 15-17), there are some mentions of astronauts ...
14
votes
3answers
4k views

Rock arches on the moon?

The large rock in the centre right position (cut off by the image's right edge) of this photo seems to include the left part of a (small) natural arch: Is this indeed a rock arch? Are complete ...
4
votes
2answers
361 views

Optimal inclination for a long term LEO station serving as an intermediate stop to and from the Moon

Consider we want to build a long term LEO station which serves as an intermediate stop for flights to the Moon and back (possibly with aerobrake). Refueling, docking, crew transfers etc. Several ...
5
votes
1answer
252 views

Would GRAIL be possible on more distant airless bodies such as Mercury and Callisto?

I was thinking for quite a while about sending this question to Maria Zuber's e-mail address (she was the principal investigator of the GRAIL mission to map the Moon's gravity field), but then I ...
8
votes
1answer
178 views

Is 1/6 G enough for humans to stay healthy?

Micro-G is known to be detrimental to health in the long-term. However, the Moon is at $\frac{1}{6}$ G (while Mars is at ~$\frac{3}{8}$ G). Is $\frac{1}{6}$ G enough for humans to remain healthy in ...
5
votes
2answers
782 views

Is there a way (working or in development) to track satellites in lunar orbit like we track objects in Earth Orbit?

I understand that Earth orbiting satellites are tracked using technologies such as radar, but due to the distance between the Earth and the Moon, they aren't really useful for Moon sats. Is the ...
2
votes
1answer
127 views

Does the Moon's orbit intersect the Earth's orbit around the Sun?

I know that the Moon's orbital plane makes an angle of 5 degrees with the Earth's orbital plane or the ecliptic. Also, the Moon's orbit intersects the Earth's orbital plane at two nodes - ascending ...
7
votes
1answer
124 views

Have various lunar rovers known their own position on the Moon? If so, how?

Given that there is no satellite navigation on the Moon, have lunar rovers figured out their current location on the surface of the Moon? If so, how? For the ones that have, did they send pictures ...
37
votes
1answer
6k views

What if Apollo Lunar Rover failed on the Moon?

Let's assume that our Apollo astronauts are on the Moon, driving their Lunar Rover and they are far away from the LM. What if LRV failed during the mission? Would they be able to get back to the LM on ...
3
votes
1answer
110 views

Lunar satellite navigation system

Inspired by some questions: Are People Actually Serious About Mining The Moon? How to estimate that receiving GNSS signals Earth while orbiting the Moon will still provide locations to about 200 ...
26
votes
2answers
6k views

What did JFK mean by "and the others" in his "We choose to go to the moon" speech?

In John F. Kennedy's Moon Speech on September 12, 1962 at Rice University, what does "and the others, too" refer to in the following excerpt? We choose to go to the moon. We choose to go to ...
1
vote
6answers
521 views

Are People Actually Serious About Mining The Moon?

I see a lot of enthusiasm about the possibility of mining the Moon. But worryingly, I don't see much said about the potential horrific effects of this. I mean, guys: the Moon is actually pretty damn ...
4
votes
1answer
171 views

Would it be legal for a company to build a base on Luna?

Are there any laws governing the legality of construction on Luna? If there are, who's responsible for enforcing them? At least vaguely related: moon structure ownership
0
votes
1answer
208 views

Why they left a mirror and not a camera on the moon? [closed]

The title says it all. Why did the astronauts leave a mirror but not a camera on the Moon? Also, is there a reason why the Hubble telescope was built to orbit the Earth and not built to be on the Moon?...
10
votes
1answer
586 views

Can I see Tranquility Base and other lunar landing sites on Google Map's moon charts?

I'm trying to find the location of the Apollo program landings on Google Map's Luna charts, but while I can find roughly the location of the Apollo 11 landing site, I don't appear to be able to see ...
3
votes
1answer
135 views

When the lunar module ascent stage launched to take astronauts back to the command module, how long was the launch window? [duplicate]

This excellent animation says the launch must happen at "just the right time", but how long was the actual launch window, how precisely (how many seconds or minutes) did the launch need to ...
2
votes
1answer
81 views

Navigating to moon from orbit [closed]

In short: My goal is to get knowledge about general travel in space and navigating to a certain object - with literally "low cost" tech. My primary interest is how to control and move a ...
0
votes
0answers
32 views

What are the advantages of building a rocket base on the moon (if there are any)? [duplicate]

Gravity is 1/6 on the moon (as compared to Earth). So to launch a rocket there will take considerably less fuel. On top of that, the moon circles around the Earth so you could give the rocket all ...
1
vote
1answer
74 views

Lunar Reconnaissance Orbiter (LRO) stereographic projection transformation equations issues

I have been trying to figure out the coordinate frames the Lunar Orbiter Laser Altimeter (LOLA) team uses for data. In their dsmap_polar.cat file they state: $$ \begin{align} X&=R \sin{\lambda}\,,...
5
votes
0answers
63 views

Other than astronauts, did any equipment go to the moon more than once? [duplicate]

It's been well documented elsewhere that three astronauts made multiple trips to the moon (whether to just orbit it, or actually land), these being Lovell, Young, and Cernan. Other than these 3 ...
8
votes
1answer
629 views

Are quasicrystals common on the Moon and Mars?

According to this 594, 7861 Nature article called First nuclear detonation created ‘impossible’ quasicrystals, the quasicrystals are readily created when where is an explosion or a meteorite impact ...
5
votes
4answers
164 views

Would knocking the moon off it’s tidal lock with Earth affect its orbit?

Lots of discussion about terraforming the moon involves smacking it with a comet such that it rotates with a 24 hour ish period. But I don’t know if this will affect its orbit in any way. Is it ...
1
vote
0answers
38 views

Articulable/tilt-able solar panels planned for, or already tried on Mars or the Moon to get rid of deadly dust accumulation on solar panels?

From Forbes.com's Mars Opportunity And Spirit Rovers Could Have Lived Practically Forever With One Tiny Change: One option would be to install some mechanism such as wiper blades to remove any ...
2
votes
0answers
25 views

Alternative small mass payload transportation from the moon to L5 besides rail gun and mass driver?

This question asks about a low cost transportation from the lunar surface to a space settlement at L5. Moon mining is can be a revolutionary breakthrough in sustaining a space economy, but large scale ...
0
votes
1answer
108 views

What qualifications and requirements do you need to go to the moon?

I've dreamed of shooting for the moon, but I'm not sure how, if any former NASA Recruitments or scientists see this, please tell me what I need to do. Question: What were the qualifications to be ...
6
votes
1answer
346 views

Where to get data of the received/measured moon temperature of the last 50 years?

Are there any accessible public data or charts of the measured and received moon temperatures over the years? What is the long term reliability of the instruments installed by the landings? If the (...
3
votes
1answer
91 views

Could a single CubeSat provide location services on another celestial body such as Mars? Could a constellation do it?

From my understanding, by having two satellites emit a signal simultaneously (carrying atomic clocks to achieve it), a ground device could measure the difference in times of arrival to determine its ...
3
votes
1answer
143 views

What rocket would Blue Origin go to Moon with?

Blue Origin has shown interest in going to the moon, and they're working on a lunar lander to do it. But it's not clear to me how they'll get the lander there. Will they use one of their rockets? If ...
3
votes
2answers
324 views

If used on an object on the moon, how cold would an ultrawhite painted object get?

Recently in the media https://www.google.com/amp/s/www.bbc.co.uk/news/science-environment-56749105.amp very white paint has been reported on that can reduce an object's temperature below ambient. If ...
15
votes
8answers
7k views

Would a duct tape spacesuit be practical?

Spoilers ahead for season 2 of For All Mankind. Essentially duct tape wrapped around the body, over clothing which looks like standard NASA jumpsuits for pressurized environments onboard spacecraft. ...

1
2 3 4 5
16