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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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2answers
94 views

Will it be possible to see BFR approaching the moon from earth, with naked eye?

The title pretty much sums it up. I'm not old enough to have experienced any of the previous manned moon landings. Given that Big Falcon Rocket will go around the moon in 2023, I'm wondering if one ...
4
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1answer
77 views

Is the telemetry for the Surveyor moon missions still existent?

Is the telemetry for the Surveyor moon missions still existent? Between 1966 and 1968 NASA put on the surface of the Moon five Surveyor landers. Is the telemetry for these mission still available ...
5
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2answers
131 views

Were panoramic images taken during Apollo 15 planned and trained before on Earth?

I followed a link in an answer to the question about stereoscopic images and found a long list with panoramic images composed from images shot with the lunar Hasselblad cameras. For instance the ...
18
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2answers
2k views

Are there any videos of onboard the Apollo Lunar Module while landed on the Moon?

These would be very worthy videos since there is air in the Lunar Module and they don't wear the heavy spacesuits, so one could see how they behave on the Moon in a breathable atmosphere and without ...
14
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2answers
3k views

Were stereoscopic pictures taken during the Apollo missions?

Were stereoscopic pictures taken during the Apollo missions? Did the astronauts of the Apollo 11, 12, 14-17 take stereoscopic pictures of the lunar landscape? I know many stereoscopic images were ...
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0answers
21 views

Did the Apollo astronauts do any EVAs in mid-flight? [duplicate]

For example on their way to the Moon, did the astronauts also leave the Apollo CSM during their flight? Or did they go outside only on the Moon? Were or could there have been any EVAs in mid-flight of ...
2
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1answer
114 views

Is ISS ever visible at all on the earth, unaided, by full moon moonlight alone?

Assuming ideal conditions of moonlight and phase angle, is the ISS ever even slightly 'visible' by full moon moonlight alone, that is to say, when the station is not in direct sunlight at all, but ...
3
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0answers
72 views

Did Apollo-11 have any radiation shielding? [duplicate]

If it did, then what kind? Or if it didn't, was it because the flight didn't last for too long? (7 days or so, from Earth to Moon and back.)
79
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3answers
18k views

Could an Apollo astronaut stand up if they fell on the moon?

I was watching old Apollo footage and noted how astronauts on the moon had a very particular gait most likely due to the poor flexibility of the EVA suits, low gravity, and need for safety. I was ...
0
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1answer
60 views

How to match orbital speeds of 2 or more satellites in different orbits?

Satellite ME is orbit around the Moon and Earth. Satellites E is around Earth. I understand the low orbit satellites orbit at higher speeds. Can Sat ME match the speed of any of Satellites E at any ...
4
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2answers
104 views

Comparing gravity wells: Earth from the Moon vs Surface of Mars

Hypothetically if a manufacturer was considering building a factory on the Moon or on Mars, which location has the smaller gravity well to escape? Assuming final destination of the goods produced is ...
1
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1answer
135 views

Which one of these (if any) is the Moon? What are the rest?

I frequently see the Moon in SpaceX videos, "I suspect" the frequency is higher than random, but can't prove it (yet!) I found the SpaceX video Falling Back to Earth | HD Footage From Space (also ...
6
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1answer
255 views

Can BFS land on the Moon?

Can BFS land on the Moon and return? No aerobraking, no ISRU resources to refuel on the surface for return, but much less delta-V than going to Mars. Landing legs are there, though the engines may be ...
2
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2answers
123 views

How close to the moon would a flyby trip likely attempt?

For a flyby of the moon, like the SpaceX #dearMoon flight announced September 17, 2018, how close would they likely attempt to pass? Is there an average or optimal trajectory for a lunar flyby used ...
4
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3answers
1k views

Will SpaceX's moon mission carry any engineers to fix the craft or will the artists be trained for these operations?

In the live stream, Elon Musk mentioned that a dozen would be the ideal size for a mission. Could have easily been an off the cuff range, but would allow for some engineers if something goes wrong. ...
5
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2answers
705 views

Is SpaceX lunar mission only a flyby mission, or it is going to land on Moon too?

Is SpaceX lunar mission only a flyby mission, or it is going to land on Moon too?
2
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1answer
119 views

Have there been long-term observations of the effects of lunar exposure to equipment?

Update: The accepted answer and its comments contain good references to equipment retrieval. I have separated off-Earth examination and photography into a new question: Has a lander/rover ever ...
3
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1answer
83 views

When Wikipedia gives the semimajor axis of the Moon's orbit, which distance does this represent?

The masses of the Earth and Moon are in a ratio of about 81:1, so they can be thought of as orbiting around their common barycenter which is inside the Earth, but about 2/3 of the way to the surface. ...
10
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2answers
1k views

How to collect gases on Moon and in space?

On Earth if you need to collect gases you can use passive hood exhaust under a fusion (convection), or just under hot liquid, or use vacuum pumps for catch gases together with air. In the space or on ...
11
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3answers
2k views

Is lunar regolith available for purchase?

Is moon dust (lunar regolith) available for purchase legally? NASA has about 382 kg moon regolith fro Apollo's missions. Is it possible to by a couple grams of it in NASA?
30
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5answers
6k views

How could an object barely exceeding escape velocity from the Moon eventually reach the Earth?

Since NASA is once again targetting low-cost missions to the Moon, I was thinking about low-cost methods of getting stuff from the Moon back to Earth. Although it seems reasonable to assume that ...
4
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1answer
180 views

Which existing or near future rockets will be able to get to the Moon?

Which existing or planned in nearest future rockets will be able to get to the Moon with a payload of about 1000 kg? For example with the Astrobotic Lunar Lander: https://spacenews.com/astrobotic-...
3
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0answers
103 views

Revisiting moon landing sites?

Are there any current plans to return to the moon, preferably close to an existing landing site? After all, it seems like a sound scientific project given that there's talk of human colonization of ...
5
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1answer
93 views

Where is the “almost certain” water in these spectra from Chandrayaan 1's Moon Mineralogy Mapper?

The New York Times article Ice on the Surface of the Moon? Almost Certainly, New Research Shows talks about the recent paper published in PNAS Direct evidence of surface exposed water ice in the lunar ...
2
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3answers
157 views

What is the daytime ambient temperature on the moon in shade?

I know that the daytime surface temperature can exceed 270°F (130°C) but if you measured the temperature 5 feet (1.5 metre) off the surface in shade what would the reading be? To further specify the ...
31
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2answers
6k views

Why didn’t the Spacecraft used for the Apollo 11 mission melt in the Earth’s Atmosphere?

My brother has recently been converted to a Flat Earther and is convinced that something that proves his theory is the moon landings being faked by NASA. I have managed to counter argue the majority ...
4
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0answers
128 views

How will the Lunar Gateway go to L2 and L1?

In a talk to the press which can be heard in the YouTube video NASA Administrator Jim Bridenstine Explains the Lunar Gateway, NASA director Jim Bridenstine says after about ...
41
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2answers
11k views

Is pinging the Moon with a laser as shown on “The Big Bang Theory” possible?

In an episode of season 3 of The Big Bang Theory, the cast sends a laser pulse to the Moon. This seems to be a real thing: What Neil & Buzz left on the Moon (2004). My questions are: Could ...
12
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3answers
1k views

How do space suits offer heat protection i.e. during the lunar day?

I didn't know that during lunar day temperature is up to +100°C. This would mean US astronauts were rather to protect against heat than cold? How was this solved (normally, space suits protect from ...
3
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1answer
365 views

Where exactly do these supposed images of structures on the Moon and other bodies come from? [closed]

I'm sure you have seen these kind of images before, and the gullible people who think they are real, some just look stupid and obviously fake, others look kind of convincing. Even though they ...
2
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1answer
115 views

Most attractive resource on the Moon

What is the most attractive resource available to be extracted on the Moon? By the most attractive I mean the most useful considering the location in which it's extracted and including all the ...
3
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0answers
43 views

What are the chances that the ISS transits the moon as seen from your house (or headquarters)?

In this answer I tried to do a simple probablistic estimate on the distribution of the ISS's ground track passes over Earth's equator. Recently there is a photo of the ISS passing over SpaceX ...
2
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2answers
91 views

Could the Lunar Lagrange Points work for space telescopes?

Every orbit in space has its pros and cons. Low Earth Orbit has accessibility but frequent eclipses whereas a Solar Lagrange Point is clear and stable but distant. In the case of the Lunar Lagrange ...
13
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1answer
2k views

How easy is it to take off from the Moon?

I do wonder how easy it was for the astronauts to take off from the moon, in their landing craft. I realise that there's no atmosphere there, and that gravity is about one sixth of that of the Earth's ...
4
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0answers
104 views

What physiological effects did the Apollo astronauts experience due to the lower lunar gravity?

When humans are exposed to weightlessness they often experience space adaptation syndrome (similar to motion sickness). Also fluid redistribution to the upper body is nearly immediate causing bulging ...
9
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1answer
159 views

How does the ISS Transit Finder website get the position of the ISS so accurately?

The recent Petapixel article How to Shoot the ISS Flying Across the Face of the Moon gives a lot of detailed, helpful advice for photographing transits of the ISS across the disk of the Moon. For ...
3
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1answer
471 views

What will China's new “space station” in Argentinian Patagonia be used for?

The New York Times (fairly strongly worded) article From a Space Station in Argentina, China Expands Its Reach in Latin America describes a "space station" or base equipped with (among other things) a ...
10
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1answer
977 views

How much total lunar mass remains viable for analysis here on Earth?

I know that samples of lunar regolith were taken on many missions to and from the moon, but I also know that these rocks aren't common and are being used for analysis purposes. According to this NASA ...
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0answers
54 views

Could a revised Space Shuttle be sent to the moon with a lander as cargo? [duplicate]

Why couldn't a modernized and revised Space Shuttle with attached fuel tanks be used to go to the moon with a moon lander in it's cargo bay?
3
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1answer
71 views

Would we be able to see a Space craft transit in Lunar orbit?

If a Apollo type Moon mission happened today would we be able to see it transit in Lunar orbit? I know we can't see the Landing sites of the Apollo but could we see the Command Module and its shadow ...
2
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1answer
143 views

Expected differences between concrete prepared on the ISS and matched samples prepared on Earth?

The Spaceflight Now article Cygnus arrives at station with CubeSats, quantum physics experiment describes experiments that will be done on the ISS mixing small samples of either cement or concrete (I ...
43
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3answers
12k views

Why is an airbag landing on the moon not viable?

In this related question, it was explained that the differences in design between a Mars rover and moon rover were too substantial to substitute one for another. One of the points made was that the ...
10
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2answers
1k views

Differences in the design of a commercial Moon rover and a commercial Mars rover?

News in May, 2018: Spaceflight Now NASA cancels lunar rover, shifts focus to commercial moon landers Washington Post Stunning scientists, NASA’s only moon rover just got canceled Space.com NASA Kills ...
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2answers
618 views

Where can I buy lunar regolith simulant?

I am a high school student living in Canada that needs lunar regolith for a science experiment? Anyone know where to buy simulant of it?
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0answers
81 views

How would we make concrete on the Moon?

Bringing building materials to the moon would be costly. It would be better to just create materials on the Moon.
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0answers
43 views

How bright would electrostatically suspended dust above the lunar surface be? Has it ever been measured?

@TomSpilker's answer mentions the potential effect of dust from the lunar regolith being slightly electrostatically levitated by the charge on the lunar surface induced by the solar wind on telescopic ...
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1answer
90 views

Is there any Scientific Benefit to the Lower Albedo levels on the Darkside of the Moon?

I was reading the answers to this question: What did the sky actually look like from the Moon? And it got me thinking... What, if any, astronomy tasks could be performed better on the lunar far side ...
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5answers
2k views

How do we know the Apollo Moon landings are real?

Since about 1976, conspiracy theories denying the Moon landing and claiming it was all faked have cropped up. As a website devoted to answering questions about space exploration, we receive questions ...
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1answer
2k views

What is the purpose of the satellite that China is putting in lunar orbit?

I was just reading an article about the satellite that China is putting in Lunar orbit as phase one for their exploration of the far side of the Moon. Is this satellite just to be used as a signal ...
3
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1answer
81 views

Shape and dimensions of the Moon's reference surface for selenographic latitude/longitude?

For Earth, the reference surface for "GPS" latitude, longitude, and altitude is the WGS84 ellipsoid, with equatorial and polar radii $a, b$ of 6378.1370 and 6356.7523 kilometers, respectively. ...