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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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Has NASA “gone south”? Why are astronauts needed to explore the Moon's south pole?

Wired: Why America Wants to Send Astronauts to The Moon's South Pole “Before we put boots on the ground at the poles, we urgently need a robotic water ice prospecting mission to the lunar poles,” ...
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What is the state of current plans for a permanent moon base?

With all the news regarding SLS/Commercial Crew and the refocus on Moon then Mars, I was curious as to what we will actually be able to do with these upcoming launch capabilities. I'm familiar with ...
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Why are we trying to build a base on Mars before the Moon?

My question is very close to the question answered in the link below and is raised by the answers that question received: Is a Moon-base inherently more dangerous than a Space Station? Why are we ...
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Is a Moon-base inherently more dangerous than a Space Station?

Living in space is pretty dangerous, and the wonderful people of the ISS float around the Earth at risk of radiation and micrometeoroids. I'm curious if they're any more safe than if they simply were ...
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Why do some scientists want a moon base for further space travel? What are the advantages of a moon base if compared with an earth base?

The distance between moon and earth is just 384,400 km. So, if we can travel (from moon) to another planet, we also can travel (from earth) to the same planet. But I've read that some scientists want ...
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Is post-X-prize Beresheet better than the X-prize candidate?

As mentioned in this question the total budget of the Lunar X-prize was about US \$30 million, and that included some other prizes beside the winner. However the budget of Beresheet post-X-prize ...
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Why do countries or companies still bother sending landers/probes to the moon?

Countries like Israel, South Korea, or China most recently and companies like ispace have plans to send landers to the lunar surface. At least according to this list. Is it because there is little ...
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Was this the first-ever photo of a full moon very close to lunar new year?

Limiting the concept of "lunar new year" to "Chinese New Year" (since there are many lunar and lunisolar calendars, the latter of which the traditional Chinese one is a widely used example), is this ...
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589 views

Are there seasons on Luna?

I saw a comment that made me curious. The Earth's axis tilt is about 23.4°, whereas Luna's is only 1.54°. There is negligible atmosphere on Luna, and as far as I know although signs of water ...
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What did the sky actually look like from the Moon?

All the photographs I've seen from the Apollo missions show lunar features in good detail and exposure. This of course means that the shutter is not open long enough for light from stars to develop on ...
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2answers
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Could you fly on the Moon, in Earth's atmospheric pressure, by flapping wearable wings?

According to this site, NASA produced a public domain painting representing what the Olympics could look like on a lunar colony. In the upper right of the picture, there are people flying by flapping ...
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What are NASA's dozen payloads for the Moon that will be ready for launch by the end this year? (2019)

Ars Technicha's NASA emphasizing “speed” in its return to the Moon says: The leader of NASA's scientific programs, Thomas Zurbuchen, said this program was designed with speed in mind, and it would ...
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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.
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Why is Beresheet doing a only a one-way trip?

Why is the SpaceIL Lunar Lander doing a one-way trip? Is that a common project to do nowadays, to send landers to Mars and the Moon without returning them?
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Why is there no exosphere demonstrating moon dust and particles in the Apollo footage?

I have read dust levitates on the moon's surface extending to 100 miles in the sky (horizon) creating an exosphere. Dust levitates because the surface of the moon and dust particles have become ...
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Is Lunar Horizon Glow still a thing? Has the “dust settled” on the topic?

The title gets its inspiration from Is the Flyby Anomaly still a thing? but the topic is different. The Lunar Horizon Glow is a phenomenon observed by some of the Surveyor missions. While the Sun is ...
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Can anyone find a more recent NASA paid for study on lunar tunnel-boring machine?

The one that I found is from May 5,1988 by Professor Stan Lowy Department of Aerospace Engineering Texas A M University https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890008382.pdf https:/...
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1answer
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How to extract coordinates of an LROC Image?

How can I extract the coordinates from an existing LROC image to search for that area in the LRO Image Search Tool? What coordinates should I enter in this example? http://wms.lroc.asu.edu/lroc/...
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1answer
163 views

What Apollo equipment could be salvaged from the Moon?

If humans returned to the original Apollo landing sites, what previously left-behind equipment could reasonably be salvaged as part of a future mission or colony? That is, is everything that was left ...
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3answers
311 views

Why aren't there carbonate rocks on the moon?

I read in a lot of places that for some reason the moon lacks carbonates, and thus carbon. Part of the reason seems to be the lack of biological origin and cycles. But are there no other sources for ...
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Capture protons from solar wind

Could it be possible ( using a reasonable amount of energy and ressources ) to capture protons from solar wind on (ex. the moon) in order to produce water for a long term self-sufficient mission. The ...
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Would it be more viable to process moon rocks into Helium-3 on the Moon than doing so on Earth?

Helium-3 is a substance that is very useful for nuclear fusion, which can generate a lot of power. Unfortunately we don't have a lot of it on Earth, but on the Moon it can be processed from basic moon ...
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Could you launch rocks from the Moon to hit Earth?

In the Robert A. Heinlein novel, The Moon is a Harsh Mistress, the plot famously revolves around sending rocks from the Moon to Earth, launched via electromagnetic rail gun and the impacts looked like ...
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Tracking SpaceIL Beresheet Moon lander

Does anybody know if Beresheet orbital data are available on NASA Horizons? Some bodies are listed by reference number, with no name: https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&...
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How SpaceIL Beresheet gets to Moon from GTO?

GTO is an orbit which has its main axis in the plane of Earth's equator. Moon orbit has a different plane. This means until GTO main axis isn't on the intersection of equator and Moon orbit, you can't ...
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191 views

What joints of Apollo 17 space suits did moon dust get into, making the astronauts arms difficult to move?

At about 02:45 the Curious Droid video Apollo, the Lunar Dust and NASA's Dirty Problem says: During Apollo 17, crew members Harrison “Jack” Schmitt and Gene ...
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What science data has been released from Chang'e 4?

Chang'e 4 was the first soft landing on the far side of the moon. What science data has been released from it? That is, in two parts: what science was done and of that, what data has been released to ...
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1answer
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Would it be possible to reach Mars using the same fuel-saving method SpaceIL's Beresheet is using?

A few minutes before SpaceIL's Beresheet spacecraft was launched into space, Israeli prime minister Netanyahu congratulated SpaceIL and all those involved and said: "We are already waiting for you to ...
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1answer
3k views

Why is momentum transferred to the moon?

The moon whizzes around the Earth, dragging water after it and producing tides. In a comment on this question, I asserted this would sap the momentum of the moon causing it to fall to Earth. This was ...
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NASA says Mars' soil has the nutrients for growing plants, how about the Moon?

Okey, that's not everything they said but I can't write everything in the title. NASA says Mars's soil has the nutrients for growing plants, though there may not be the right amount depending on where ...
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1answer
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Which are the reasons for wanting to have a colony in Mars first than in the Moon?

As far as I understand, (correct me if I'm wrong) one of the reasons for wanting a colony in Mars is for the possibility in the future of having a space port where rockets could leave the planet ...
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Why is the earth so small when observed from the moon?

I recently discovered the pictures from DSCOVR taken at the Lunar Transit in 2016. The earth appears very massive behind the moon, which is a little unintuitive if you consider how small it is when ...
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3answers
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How did NASA achieve their live TV broadcast in 1969?

In 1969, NASA not only went to the moon, but broadcast the whole thing live on TV. How did they achieve the TV broadcast? What technology did they need to use to send a video and audio signal from ...
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2answers
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Did Apollo's velocity slow down after TLI due to Earth's gravity?

I assume Apollo's velocity slowed down after it left Earth orbit, for how long was it decelerating. Did it start accelerating as it approached the Moon. What was the rate of deceleration due to ...
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563 views

Apollo Missions - Travel time to moon [duplicate]

I must be missing something - escape velocity is about 25,000mph. The distance to the moon about 240,000 miles. That computes to about a 9 hour flight. Why did it take 3 days for Apollo missions to ...
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105 views

Is any feature of the Moon protected?

Perhaps this seems trivial, since it may not directly affect our planet, but if we ever colonize the Moon and mine its resources, the trace of human devastation will change sooner or later the surface ...
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If there is actual ice on the moon, why hasn't it sublimated?

The Ars Technica article NASA seeks industry help with lunar landings, potentially sample return discusses the potential value of ice on the moon as a source for fuel in future space missions. Ice ...
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What did JPL's 1939 lunar lander look like and what practical aspects of landing on the Moon did this engineering design address?

According to Wikipedia's Jet Propulsion Laboratory: During JPL's Army years, the laboratory developed two deployed weapon systems, the MGM-5 Corporal and MGM-29 Sergeant intermediate range ...
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How might the Lunar X Prize contestant spacecraft have navigated 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 ...
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How soon after “The Eagle” landed did they first attempt to bounce a laser off the Moon? When did it first succeed?

The question When did Houston figure out where the Eagle had landed? says (in part): During Apollo 11's stay on the surface, Michael Collins was given seven different locations to look for the ...
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What was the first piece of wood to reach the far side of the Moon? Or the first spacecraft?

Chang'e-4 is the first lander/rover mission to reach the far side, but probably doesn't have any wood on it. What was the first piece of wood that landed on the far side of the Moon, and what was the ...
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Could Hubble observe the night side of the Moon?

IIUC the Hubble space telescope cannot observe the Sun lit side of the Moon. And Hubble is never pointed closer than 90 degrees towards the Sun. But this still allows for observing the night side of ...
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Would there be value in taking tardigrades on a Lunar mission?

China's Chang'e 4 mission recently initiated biological experiments on our moon. There's value in performing those experiments, of course. Now, I'd be curious to see how tardigrades do in the long ...
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How did Lunokhod 1 become “lost” in 1971; in what ways did astronomers “look for it” after that?

The Smithsonian Magazine article Lost Soviet Reflector Found on the Moon says: There are actually five retroreflectors on the Moon: three placed by Apollo astronauts and two that sit atop Soviet ...
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How feasible would it be to move the ISS to the surface of the Moon to recycle its components in future?

I see it as an awful waste of energy in not only creating the International Space Station (ISS) components, but also in getting them into space to only decommission the station by letting it fall back ...
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Asteroid impact on the Moon: which effects cause the flash?

It is most likely that there was an impact on the Moon during yesterday's lunar eclipse. I am trying to get some more understanding of this so that I could maybe do a more detailed video on this ...
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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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Apollo communication between the Earth and Moon

How was it possible for astronauts to send back tv/radio signals to earth from the moon? I have just been teaching my son about waves behavior and understand that radio waves are reflected back to ...
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Luna artificial satellite eclipses

Have we been able to see the shadow on the Moon's surface of any artificial satellites that orbit the Moon?
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Launch window for the Apollo Lunar Module?

If something would have gone wrong after a successful Moon landing requiring to ascent as soon as possible, what about the launch window for the lunar rendezvous maneuver? Could they ascent at any ...