ฝัง
- เผยแพร่เมื่อ 28 เม.ย. 2024
- Hi Spacecats, I'm Dr Maggie Lieu and welcome to my channel, where you can find all things space, astronomy and physics! NASA's OSIRIS-REx spacecraft successfully collected and returned samples from the asteroid Bennu, offering unprecedented insights into the early solar system. This video explores the groundbreaking findings, including the diverse range of particles (hummocky, angular, and mottled), their formation processes, and evidence of past water activity.
Links:
arxiv.org/pdf/2404.12536
blogs.nasa.gov/osiris-rex/202...
Media credits:
Osiris-rex: NASA's Goddard Space Flight Center Conceptual Image Lab
Hayabusa II - DLR
Hayabusa sample collection - DLR
Images: NASA/Goddard/University of Arizona
Hummocky sediment colorado: ARetzler11
Special thanks to my TH-cam Members: Annex Celestial, Wheely Big Bike Trip, Steven Yee, Thomas Seiler, Anders Welander, Bill Fratt, David Brant, John Lewis, SpaceCatLuna, J. Campbell & Jordan Workshop
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I was privileged to be on the team of citizen scientists that mapped Bennu looking of a safe place to collect the sample. I marked every boulder, rock, pebble, and crater on over 700 images over a period of several months. It's great to finally get to see some of the science results. Thank you for making this video Dr Lieu. And a quick shout-out to all of the other Bennu Mappers!
That was amazing to learn about on Astronomy Cast w/Dr. Pamela Gay. Were you surprised by the sample size? Did the before/after pics of the sample site give you great confidence everything went well?
I was also a Bennu mapper. Seeing the images of the asteroid in this video was like spotting an old friend. One that I became intimately familiar with over a few weeks in 2019! It's great to see that the sample return mission was ultimately successful in delivering this treasure trove of material to Earth.
I thought the total was initially estimated to be closer to 240 g.
But, 120 g is a cornucopia of material, and diverse. So, worth the wait.
Thank you for all your hard work and bringing us back this amazing science specimen 😘
OMG that's amazing! Well done and thanks for your work
I am a first-time watcher as well. Fascinating subject matter, lovely speaker with a charming smile. . I am glad I watched.
Thanks and welcome
Amazing! A woman gets herself an education, achieves a doctorate, and produces videos to communicate her subject to the wider public - and still, some men comment about her makeup. Stick with it Doc, some of us are here for the science.
Why are YOU so amazed that a meer woman could get an education and produce good videos and be beautiful? It's almost like you might be the one that has the stigma bias? She likes the attention from all sides, stop white knighting, no one asked you to bigot. It's okay to drool over what you like about her, but not her beauty? It's okay to like beautiful women and mention that just like it's okay to like women for their intelligence. Neither one should be surprisingly amazing.
Are you assuming genders ?
@@PhoenixRising2040 🥱
@@PhoenixRising2040 yes
@user-fq2mh7tv5m lol okay just checking 😜
First time watching, I was interested in the subject already. Came for Bennu, stayed for Space Cat! Thanks for the detailed info.
I find it so amazing that those samples have not been touched by anything alive ever, for at least 4.5 billion years they have been wandering the solar system undisturbed, and now it is possible to inspect a very small part of them. Thanks for the video!
Couldn't agree more! thanks for watching
This is important information not just for it's geological value but also to prepare us for when one of those rocks heads our way 😳 thanks for keeping us informed with your beautiful delivery Dr Maggie ❤
Thanks for watching!
And for space settlement. Carbon, water ( in hydrated minerals) and probably a bunch of other things the moon is almost completely devoid of.
I’ve been wondering about this forever.
same, the detailed paper is in the description box - but 70 pages!!!
First time watcher Space Mog and I enjoyed your video so have another subscriber thank you!
Yup! Me too!
Awesome, thank you!
Welcome! 🤗
Same here... Got my sub...
Yeah 👍 good stuff!😮😎🇺🇸🛸👽🚀👌 11:36
120 g is twice the planned minimum, but a lot lower than the 2+ kg maximum we were "expecting."
When I saw the sampling vid, I was hopeful we'd gotten way more than we were planning on (closer to the upper end).
When I heard that the TAGSAM flap was stuck open and stuff was leaking out, I got anxious (closer to the lower end).
BLUF: I'm MORE than happy with 120 g after mapping all those rocks.
120g is just massive compared to the Hayabusa ones though - and i know they have gotten so much out of it in terms of science. I helped smuggle a piece of Ryugu into the country last summer and honestly, I couldn't see a thing in the cannister it was stored in - they assured me it was in there though 😂🙈
Astro-mule ???
3:05 They invented a really great buffet, with a reliable sneezeguard. Then they used it to clean an old Cadillac air filter they found in the desert when they mistook it for a spaceship part. This is why we can't have sneezeless glops and bits in bulk from the communal trough, and no one can seem to tell the difference between a rare sky thing and a hubcap.
😂
Very interesting! Thanks!
Glad you liked it!
A great round-up on this fascinating expedition. Thanks Space Mog!
My dad worked for NASA ('62-'92), I love this stuff!
Bet he was an inspiration!
Lubricant or anti-seize on the fasteners would contaminate the samples, so the lubrication wasn't just insufficient, it was totally absent. Perhaps they should design the fasteners to break cleanly when overtorqued as the sample container is single-use anyways
That seems like a good idea.
They should just have used dissimilar materials
@@HALLish-jl5mo what would that change, besides introducing another contaminant, thermal strain, and a galvanic potential?
@@shanent5793 Vacuum welding only happens between similar materials.
Essentially if you bring two components made of the same material and press them together with no atmosphere in between, they just become the same object.
But this doesn't happen between very different materials.
So two alloys of Aluminum might vacuum weld, but aluminum won't vacuum weld to steel.
@@HALLish-jl5mo this is incorrect. The process is equivalent to diffusion bonding, which is used commercially to bond dissimilar materials like copper, steel, aluminium, titanium, glasses, and ceramics. Higher temperatures accelerate the development of the bond, but there is plenty of time for it to happen at lower temperatures during a multi-year space mission.
fascinating
🙂 And my cat and i Would love to fly to the stars 😊😉😻
Let's go!
Fascinating. Thanks! 👍
Thank you!
Thank you for the info. I also love your.analysis for us lay people.
So nice of you, thank you!
Thank You for explaining it very well ❤
Glad it was helpful!
@@SpaceMog yeppp
Another space/astronomy channel? Don’t mind if I do!
:-)
Wow, found this video as I wanted to know more about the OSIRIS-REx mission and Bennu sample. It's nice to hear what was returned and some of the initial results. Looking forward to more good videos.
Thanks so much for creating and sharing this educational and entertaining video. Keep it up 💯👍
Maybe it's late at night and I'm just loopy...
But the sheer amount of innuendo in the phrasing of this story was astonishing...
And appreciated.
Thank you.
Glad you enjoyed it!
A great bit of science there! Hopefully there’s more to come from it
im sure there will be!
Thanks Doc Mog! 🐈⬛
Thank you! 😊
Great vlog. All power to you my lady.👍🙏🇦🇺
This is beautifully presented. I’m subscribing!
What a very nice girl speaking about very important and interesting things about the sample analysis from another world. Cheers my dear!
🎉YOU ROCK DOC🎉
why thanks 😊
Fascinating - thank you 🙏🏼
My pleasure!
Just found your channel. Subbed. Excellent content, good editing, informative to us "laymen".
amazing video as always Dr.! what gets me is how "earthly" the rocks and dust look... even from something coming from billions of kilometers away... looks so much like something from earth... it goes to show how much everything is connected..
Thanks a million!
Hello Maggie, I'm new to this channel, but have been a huge fan of quantum physics, science, space etc.
There are tons of space channels. Too much. But your voice is just amazing!! ❤
I actually was amazed that mission was a success. Now humans have sampled 3 different stellar bodies 👍
Yay us!
Love all the b roll of them working on it. Haven't seen much of that elsewhere.
🥰
This is great, just stumbled on your channel, loved to get this info provided so clearly!!
Thank you for stopping by
Thank you for the update, Dr. Lieu. Fascinating stuff. The much deeper penetration into Bennu by the sampling device than was expected was a case of serendipity; the sample is likely to be more pristine than surface material exposed to the solar wind. Imagine being able to examine material derived from the dust in the original solar nebula more than 4.5 billion years ago! Exciting times ahead!
There's always that one screw (or two) that you can't get loose! It just becomes a lot more complicated when it happens to NASA.🤣
happens to me all the time!
I'd read about how metals react in a vacuum as a kid. This is better than a Hienlen story.
Great presentation. Thanks.
Thank you, very good presentation!
You are welcome!
Thank you for the informative video! You answered many of the questions I had about the results of this mission..
Glad it was helpful!
first video i’ve watched on this channel. That is simply amazing what those space engineers can engineer! Also, what a super fun green screen background!😅
Glad you enjoyed it!
Recommended by youtube for the first time. They got it right for a change. I subscribed immediately. Very interesting stuff but the next few years should have a lot more revelations. I love to see experts talking to other experts about their subjects. Any chance a certain other British astrophysicist PhD black hole researcher and space news youtuber would chat with you about the black hole winds?
Nice coverage and well presented.
Glad you liked it!
Well most people don't know that if you put the other crews in and turn them in just snug you can get the other tight crews out.
And it sounds like Bennu's gravity collected shattered rocks and they did not shatter on Bennu.
Just found your channel, I really appreciate the work you put into your videos. Instant subscribe from me. This mission was one I've been waiting to find out more about - thank you! ❤
Awesome, thank you!
Flash frame of you at about 00:20. Yours truly, mr buzzkill.
sorry! :-)
@@SpaceMogthat’s just your subliminal beauty watermark, or your nemesis AI’s first attempt to break through to the other side!😅🥹😇🙀🐈⬛
@@SpaceMog I used to work at a videotape duplicating service. I had to “QC” TV shows for broadcast. “Quality Control.” If I found no problems, I’d sign it off as “100% QC.” No worries on flash frame. These edit systems are supposed to down to the frame accurate but screw up some time. Especially with video that comes from elsewhere or the internet. It has to do w compression scheme. The video isn’t frame by frame. It’s “groups” of frames.
Another great video...thank you!!!
Thanks for watching!
@@SpaceMog I'm always going to be watching your videos for they are the best!!!
@@annexcelestial thank you 😊
@@SpaceMog you are welcome!!!
Great report, thx.
Thank you, very informative and very well articulated. Great choice of background too..
Very very thanks mam
Nice to see the inside of your spaceship.
I was watching the live when that sample return mission landed in the desert and I just couldn't stop thinking about how this entire planet is made up of similar asteroids that landed the low-budget way.
It's exciting to think about the history of that material from star dust to asteroid.
Absolutely - I think its even more fascinating seeing people hunt these things down :-)
Thx, Doc😊
Wonderful! I was hoping to explore what had happened to the sample collections. Thank you Dr Maggie Lieu for sharing your insights and time with us.
Glad you enjoyed it!
Noticed a slightly different guitar/base version of your outro music.🎸 Brilliant.🥰 And, you blew through 10k subs with one of your most viewed videos.😘 Awesome Mogs.🔥💖
Really? It's the same... yay! time to celebrate - this has been a great video for me - over 30k views in 24hrs! It just shows that longer videos are better for the algorithms 😭😭😭
@@SpaceMog😅 Interesting that I thought the guitar/base was new. I even thought I didn’t need to double check it.🙃😆🤪
Good info, thank you
Glad it was helpful!
I approve of the name of this channel!
Glad you like it, my friends call me Mogs :-)
Good
Thanks
i am also curious how the containment mechanism protected the samples from heat contamination upon re-entry to our atmosphere. Maybe the nitrogen thing pressurized it against the heat?
Hey we fly spacecraft right close to the Sun - withstanding millions of degrees, a bit of re-entry friction is nothing ;-)
no problemo haha
Interesting. Sounds like there aren't any major surprises with what they found
apart from the magnesium phosphate :-)
I love Osiris Rex - and also volunteered to look at those pictures and identify objects
But Hayabusa II was just cooler. It was like a little carrier fleet or ships/pods with what Scott Manley called "an anti-tank round" 🤣
I have a picture of the Ryugu sample in a cannister - it's literally a speck that you can't see because its soo small 😭 Thanks for your help in the science 🥰
I wonder when mining asteroids for rare metals will actually be profitable
Once the metal sources on earth are completely exhausted.
Nice work.
Thanks!
Thank you
I came for the video, i subscribed for the cat❤
nice thanks!
Bit of a tangent, but the Hayabusa spacecraft were both made by Mitsubishi Heavy Industries. If anyone wants to go down a fun rabbit hole, just have a look at the sheer scale and variety of things they make. If we ever get Jaegers, you can bet they'll be one of the first companies that make them.
They made my truck also a Mitsubishi Fuso FG140
No rocket scientist here, but incredibly well versed in stainless fasteners. My guess is. The bolts were assembled dry and utterly clean to prevent possible contamination. Stainless in any commonly used alloy is virtually impossible to remove with 100% reliably. Over torqued fasteners up the risk of galling exponentially. Typically a nickle based never seize product is used on the threads. PTFE is virtually worthless in this application. Stainless is incredibly tough and tenacious but not a very high surface hardness. Much less than carbon steel. Any deformation in the threads causes galling at the point of contact under pressure. Even spinning a nut to fast will gall the treads. So my theory is the bolts galled due to lack of lubrication. But obviously lubrication could contaminate a sample. Just a passing thought.
Ur amazing love 🎉💚💜
Love you :-)
@@SpaceMog LU2 other version of WE in the kaleidoscope reality... i wish only we could meet before someone else meets you... wishful thinking i guess. I'm not sure whether we will get married in this world and reproduce but if that's off the table would you be willing to come to my home planet and live a life with me? I don't offer this to many people because each one represents a lifetime but im very serious if you are willing so am i and i will have a soul extraction team get you off this slave planet and into a new body with no downtime after you are done living here uninterrupted of course... anyways. That is a offer i don't hand out often but you will do really well on my homeplanet and for Selflessism i believe... Yet to feel your energy in reality but i feel because a ocean seperates us i must try extra hard...
That rock has seen more places and time than earth. it feels almost spiritual when I look at it and image its past. it must have seen some crazy shit.
Its been watching us this entire time!
Best of luck on creating content here on TH-cam. Looking forward to more Space vids. 😊
Anyway, what are your thoughts on that interstellar Oumuamua space satellite?
New sub here. Excellent presentation.
Thank you and welcome :-)
The aggregation of nature truly knows no bounds. While your standard volumetric or exponential measurement is easy to calculate, but once you start factoring in condensed matter, it no longer is a volume but one that contains surface area. One of the functions of the universe in my estimation; among others like the sequestration of heat, magnetism, plasma, and consciousness. Our geological missions are the only ones that will yield physical evidence, often the gold standard in science, and the sooner that happens the sooner we will understand the palette of this cold welding.
9:00 I am just curious if gravitational attraction of various matter could give rise to a morphological sedimental form over time? Shatter and Restructure through collisions over eons could explain such random sedimentation amongst the sharp edges of fracture.
A smart beautiful woman. ❤ Thank you for the update.
thanks for watching
Cold welding doesn't happen just in space it happens here on Earth in a vacuum, also the two pieces need pristine surfaces ie no oxidation layers on the surfaces to be joined.
You got a new sub!
Thanks for subbing
Thanks Doc, been looking forward to this one.
Would it be any use as a refuelling station?(delta v period etc:)
"EFF BENNU! (So. Many. Rocks.)"
If you know, you know. ^_^
At this rate I'm a full blown geologist :-)
(7:16) _*Specular_ reflections. 😊
Thank you
Love the outro music
Subscribed
Thanks!
Yes, because our device pulled the sample off of this asteroid
She is so pretty! 😊
💅
U of Nottingham has a iron grip on the TH-cam Science videos market haha
haha - looks like it!
Third already?! Awesome.
:-)
Was the OSIRIS-REx sampling procedure significantly better at getting uncontaminated samples that the previous Japanese missions?
Could you do a video on the handedness of the galaxies?There’s a 12/19/2006 paper by Michael J. Longo on the topic.
Thanks
I wonder if they couldn't use anti-seize coating on the fasters because of contamination issues as well - no easy way around it except by using dissimilar materials next time.
Either that or better lubrication
Or a different design that does not use bolts screwed into blind holes. Thinking external tie rods or some kind of clips or springs.
Liked and shared.
Thank you soo much, you're a star 💫
I can’t wait for the day when we can get asteroid rocks on Etsy :P
You can already - not these specific ones... but still :-P
I wonder if any asteroid samples could be tied back to a planetary impact or a likely planet it might have come from by impact ejection, rather than being the primordial rock that formed x-planet? Many asteroids are formed by collections of smaller “rock” debris.
Thats correct
I love your lashes Dr Maggie
Hey I’ve got a question I’d like to go into astronomy dose esa provide any job looking in to astronomy?
Coolshit!
If the minerals are Carboniferous, where did the carbon come from, or how did it become concentrated? 🤔
I call it Asteroid Benny.
Love that
What's the song at the end?
My theme tune - thanks to AI :-)
@@SpaceMog Oh wow! I'm surprised agAIn..
I wish I went to school and had colleagues..😢🎉🎉🎉
We're here for you
Is it true that this is considered the most likely near earth object to eventually collide with us?
No detail on elemental structure?