What did NASA’s Lunar Orbiter discover around the Moon’s craters? LRO 4K

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NASA’s LROC has been imaging the surface of the Moon since 2009. What has it discovered about the Moon’s craters?
https://brilliant.org/astrum/

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Want the episode playlist? https://www.youtube.com/playlist?list=PL2gLpWRK0QlBOzmGtXt1y_gnS2WShTbTa

Want to explore the 3D model of the Moon with Quickmap? https://quickmap.lroc.asu.edu/

Want to explore some of the LRO images yourself? http://lroc.sese.asu.edu/images

Image Credits: NASA/LRO

Music Credits:
Stellardrone – Billions and Billions
Stellardrone – Cepheid

Comments: 100
  1. Raul JR Lara

    Quality videos . This is why I always watch your videos man .

  2. Matt Thompson

    Can you run that bit about why there is no depth perception on images from the moon again? Because I can think of some other explanations for it.

  3. fuckyshityfuckshit

    Amazing content. Keep it up proud of ypu

  4. Sonix run

    Hey hope your kid is OK.
    Love your vids.

  5. Elle Godoi

    Yay!! New moon video😋

  6. R W

    The cool parts around the younger craters are the air spaces in between the disturbed moon soil molecules. The voids cool faster than the solids.

  7. Lanze Manao

    Heck. I was right. Hahahaha

  8. Noneya Bidniz

    What did NASA’s Lunar Orbiter discover around the Moon’s craters? Dingleberries ?

  9. Eric Colvin

    7:46 There’s a little understood phenome-NON.
    “Phenomena” is plural. 
    Either “There IS A phenomenon,” or “There ARE Phenomena.”
    Great vid.

  10. TheMontanaDave

    Could the cold spots be comets that have remnants left? Or possibly they meteor exposed enough material to be able to see a water or ice layer?

  11. MikeWiggins1235711

    Excellent instructional video.
    I knew of LRO and, basically, what it did. But I was somehow surprised that it had been gathering science for 10 years already! It’s also disappointing that one of the only ways I hear of LRO discoveries is through excellent YouTube videos like ASTRUM’s.
    I am now subscribed.

  12. tim smith

    @4:35 is looks like a smiling joker in the new crater to the left.

  13. MaxB6852

    The cooler areas are bound to contain metal possible Nickle from asteroids.
    Regolith tends to be a fluffy dusty material which doesn’t transfer heat readily

  14. razorline

    the reason why the creators is cold is because of more reflective matirial. it wil normalise because it arbsorbs sunlight over time. atleast that is the ovious answer.

  15. Corrine Helena

    I love 💗 your channel. Your voice is so calming

  16. Moist-Mike

    Hey guys! Ya know something? ” ‘The Rocket Equation’ – It’s a wonderful thing.”
    After 2+ years of listening to that line, it’s lost a bit of its wonderfullyness.

  17. Mick McMango

    beautiful work as always!

  18. Steven Gillis

    The lighter color of ejected material could be the cause of the cooler parts

  19. janrdoh

    Amazing content as always.

  20. Saosaq Ii

    Flip your phone upside down and look at the thumbnail and you will see the crater pop up

  21. Sherylin

    Hi Astrum. I have a question.
    You said that the sun can “weather” the rocks. I have been told that the sun can literally turn the rocks to dust at the rate of one millimetre per hundred years. Is this true?
    Thanks yet again for a great video :)

  22. Hiroshi loves You

    What a beautiful clip ♡

  23. CHAOTIC GAMERS

    I wish I can go to space, it’s so peaceful up der….

  24. Gary Loger

    They should put rovers on the moon.

  25. Juan Ritz

    I’ve long been a fan of your videos, but this is the pinnacle.

  26. B Caldwell

    That link for the lunar mapping is badass!

  27. Max Rocha

    Love your videos so much <3

  28. Vienna The Grill

    How about next we get, what did the Soviets Venera program see on Venus?

  29. Luking Nasty

    This man is brilliant.

  30. Ahmed minhas

    u guys are doing great job… just amazing to see all of ur stuff. u always come out with an amazing Video.

  31. Vique Mohre

    Community guidelines prohibit my complete response to this “boulder dash”.

  32. James E

    Nice compilation, however, your presentation would be much clearer if you added some arrows to point to what you are talking about. It was difficult for me in many of the slides to tell which features you were describing.

  33. Alien

    What an Awesome release, You know I’m bookmarking Quickmap, right now into my Astro folder,… I’d love to see more of these. Keep up the awesome work.

  34. chris scott

    Wonderful video….thanking you so much…..really enjoyed this….cheers.

  35. Sleeping Backbone

    Thank you. This was quite a trip. :)

  36. danny hartill

    Very very well narrated ! Always enjoy watching. thank you !

  37. TotalRookie_LV

    My guess is, those “cold spots” act like heat sinks, giving away heat faster than dust covered surroundings.

  38. That Dude

    Astrum: I wanted to leave you with an image (of the moon) that I found breathtaking.
    Moon: You’re breathtaking!

  39. Dhanush Gopal

    Best YouTube Channel! Thank you Astrum.

  40. RJ Rand

    Thank you for adding the scale of kilometers to the photos. It really helps give us an idea of the grandeur of the surface of the moon. The location of ice at the poles is very interesting too. It would be nice to see a scale overlay of those ice filled craters at the poles to give an idea of just how much water may be there. Thanks.

  41. shanos antwanos

    That was awesome viewing..thankyou.

  42. kirby march barcena

    That crater at the southpole really seems fitting to be a perfect place for colonization.

  43. Thomas Moeller

    Thank you so much taking the time to create those wonderful informative videos. Sincerely appreciated !!!!! Attention YouTube administration: I do not appreciate interruption of this outstanding work by lung cancer commercials.

  44. Mat Cas

    awesome Astrum .
    Much appreciated

  45. 95TurboSol

    This looks so good in 4k!

  46. Elenora Daimio

    Thank youuuu!

  47. Distortions

    My assumption would be the new craters are lighter (visible light or IR), and this don’t radiate heat as well… and the dark ejecta radiates heat better. Black body radiation means black radiates heat well, while white radiates heat poorly. The contents of the regolith could also affect the heat capacity, so areas rich in minerals that have a high heat capacity would take longer to cool.

  48. elvis star

    A moon without life orbiting a planet full of life…Wow!

  49. mattajas

    You are a very bright man, impressive!

  50. Wendy Goicochea

    Thank you so much for teaching.

  51. mccloysong

    Good job, I enjoyed the tour.. Regarding your question at 8:52 I thought all the cooler dark patches seemed to be the shadow side of hills. Thoughts?

  52. mjncad

    It’s too bad the LRO didn’t see the monolith in Tycho after it detected the TMA (Tycho Magnetic Anomaly).

  53. ll stream troll ll ILLX

    Nice informative video the narration almost makes you drift off somewhere else :)

  54. Sad Boii Franku

    Your videos always amaze me of how great the outer space is

  55. voidremoved

    it would be interesting to hear you make an order at the fast food drive thru where I work

  56. Byong Min

    Perhaps cool spots are areas of higher metal content conducive to radiation cooling when the sun goes down?

  57. gth042

    Hi, can you start making meditation videos? I can’t find the loop or 0.25x button :)

  58. dartagnanx1

    Amazing. Thanks so much!

  59. My Turkish Life

    Incredible, thank you…

  60. Rk rabindragon

    Hey Astrum, I recently heard about LUVOIR telescope. Any chance on you doing a video on it ?

  61. WoW Thats Great

    Great video ,
    Keep em comin’ 👌

  62. stardude2006

    I have 2 questions:
    Why are the craters of Luna so shallow ?
    and
    What is the chemical composition of the dark material in that ” recent crater ? “

  63. Tee Khing Hua

    Desktop background link please!!!! 0w0

  64. Cole

    what did it find around the craters?
    the moon.

  65. Fresno Bob

    9:00 Mineral Density below the surface.

  66. Ivor Biggun

    Another splendid film, Alex. Love your channel.

  67. Christian Stran

    Thanks for always making amazing videos for us!!

  68. futarb d

    My take on the cold spots.
    A swarm of asteroids or a comet all broken apart from one source. This could explain why the spots all behave the same. The impacters all have the same composition.

  69. Greg Chase

    **THE COOL BLUE SECTIONS ARE EASILY EXPLAINED**
    You’d need to consider the engineered surface – a layer of conventional dirt deep enough to fool the underachievers on Earth, and the engineered base under that. The folks who designed the surface got overconfident on their “how deep should the topsoil be to fool the underachievers on Earth that it’s a real moon” calculations. They got overconfident on that.
    Thus, the ‘cool blue’ is evidence of poor calculations. The base material under the topsoil bubbled up due to an unusual asteroid trajectory and impact. The asteroid had tons of backspin and a resulting unexpected trajectory.
    Aliens know nothing of baseball pitchers’ mastery of projectile trajectory manipulation, or a tennis pro’s control over ball spin.
    They think we’re underachievers. Well — we are. But we know a phony, alien-base moon when we see it.
    Yeah NASA everyone has seen the videos.
    .
    .
    .

  70. Phil Whitelaw

    Thanks Astrum, that was an interesting video.

  71. skyrien

    Pausing the video to say THANK YOU for the awesome visual aids meant to help the fascinated layperson! Too often astronomical visualizations are shown in ways that make it difficult to gauge scale–the city overlays were great!

  72. vanja code hriberski

    where is my space ship so i go drive around

  73. Planet Earth

    When you’re in for 3 minutes and realize that you’ve already seen it twice

  74. George Jones

    I thoroughly enjoyed that, thank you and please keep up the great work.

  75. Dr.Green Thumb

    Wooow dude, mi mount fals down from this vid, incradeble details. Your other vids are also fkin Cooool!!!

  76. Moises Montecillo

    Because your spitting Moon facts, I got a “Moon Nursery for plants”😂😂

  77. 林宝宝

    Dude, idk if it’s your accent or something but I always feel so chill whenever I watch your videos. Keep up the good work

  78. damonwebb813

    Excellent
    Now I’m thinking about fracture lines, depth affecting heat transfers
    2 the effect of melted rock flow in those rocks fratures, resolidifying changing the thermal factors
    AND maybe as intriguing , how radiation , cosmic Ray’s or other effect, affecting a celestial body with no atmosphere, altering it over time , so it no longer shows up on scans ……..

  79. ikonerg

    Excellent video. Particularly fascinating are the old vs new craters and the ones that could contain water. Very impressive and your video is well put together.

  80. Squirrely

    I’ve been a lurker for ages. Thank you so much for taking time out of you day to put these wonderful videos out.

  81. Margaret Neanover

    A mood moon. Well, partly a mood ring element. I think not quite a mixing bowl.

  82. Alex Samuel

    The white patches are thermal reflection from the earth or likewise background radiations.
    It could be possible that residual energy would be left over, intense spots releasing thermal energy after being charged up by ionizing solar radiation.
    To understand the “phenomena”
    Is to understand the fundamentals, and understand the nature of the matter you’re working with.
    I’m not saying I’m right, but I’m 98 percent sure that charging particles with ionizing radiations leave residual thermal and electromagnetic effects.
    Observing the photograph tells me the effect is low on relatively flatter area, and high on elevation areas.

  83. Paul Johnstone

    The cooler spots around new craters are caused by compaction of the rocks (which will normalise over time).
    To draw an analogy, it takes much more energy to heat up forged steel than cast or rolled steel, such that if you heated both by the same degree, the forged steel would actually be cooler, because of its density.

  84. bestamerica


    did the moon own lava / magma / volcano on the moon ground before…
    or many asteroids / comets / meteors hits the moon ground many years ago

  85. K Mart 2

    As always, your videos continue to educate and inspire me! Keep up the great work!

  86. Larrymarx

    Thank you for posting this video… Now I have lunar fever, I’m gonna google more LRO images…. LM

  87. SinnerD2010

    Regarding the crater temp phenomenon, I would suggest it has a lot to do with the erosion effect you spoke of. Newer craters aren’t covered in as much surface dust like the older ones are, thus the younger craters can better radiate their heat away as the sun goes down without the blanket of surface dust.
    Would also venture it may have something to do with the differences in radiation exposure between the surface composition and the underlining material. Perhaps the vastly more radiated surface material is less capable of transferring its heat into the environment than the underlying material that’s been until impact shielded from such radiation.
    just theorizing of course. ;) awesome video btw

  88. Paulo Da Silva

    Awesome video from LRO scanning from the moon. Great knowledge! Thank you for sharing. 👍

  89. eribruski

    Well done!!!

  90. Michael Byrnee

    Very interesting and informative presentation, with fabulous images. Thanks for taking the time and energy to inform us!

  91. PAL 725

    Our moon is so interesting. Thank you. :-)

  92. Colonel Sanders

    If they can find water ice in a similar crater on Mercury, I won’t be surprised if it turns up on the Moon. Finding huge deposits of Helium-3 would also be a game changer, and make fusion more viable as an energy source.

  93. Herbivore

    something about the voice and content, really lowers my blood pressure and relaxes me every time I watch these.

  94. nitramyar

    Our Moon never fails to fascinate me, and this outstanding video certainly captures some of that fascination.

  95. azorthegreat

    I think the inpacts are compacting the ground beneath it making it denser cooling slower but also heating up slower.

  96. Arthur Ribeiro

    Awesome content as always, keep up the good work!

  97. MrTransits

    Can’t thank you enough! high quality and great information about the moon!

  98. Unedited Gamer

    Metal/metal dust from impacts which possibly absorb more heat from the sun during the day due to being denser and than become cooler at night for the same reason?

  99. Fredd B

    I realy love your content. For some reason i always feel calm and relaxed when i look at your videos. Keep up the good work.

  100. Astrum

    Two things, sorry I wasn’t clear enough in the video but the *cities* *were* *superimposed* *in* *by* *me* *to* *help* *you* *judge* *scale* . And second, here’s the links for some of the images for those of you that want to browse them for yourself (look for the TIF download at the end of the posts):
    Giordano Bruno Crater: http://lroc.sese.asu.edu/posts/1111
    Shackleton Crater: http://lroc.sese.asu.edu/posts/1105
    Chladni Crater: http://lroc.sese.asu.edu/posts/1086

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