JWST vs Apollo Landing Sites, TRAPPIST-1 Atmospheres, Chinese Space Program | Q&A 248

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Why doesn't JWST look at Apollo landing sites? What happened to TRAPPIST-1 atmospheres? What's the biggest thing we can measure our velocity relative to? Will the Universe ever start bouncing back? Answering all these questions and more in this week's Q&A show.
Dr. Maggie Lieu - "Space Mog"
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00:00 Start
00:27 [Andoria] What's the biggest thing we can measure our velocity relative to?
02:40 [Vulcan] Why doesn't JWST look at Apollo landing sites?
05:12 [Risa] How can we make Moon regolith safer?
09:13 [Aeturen] What do I think about smart telescopes?
13:25 [Vendikar] When is the Universe expected to bounce back like an elastic band ?
15:56 [Remus] Thoughts on the samples from OSIRIS-REx?
19:29 [Janus] What is dark matter?
20:10 [Cait] Can they still fly Ingenuity?
21:45 [Betazed] What happened to atmosphere of the TRAPPIST-1 planets?
23:43 [Cheleb] What comes next after satellites in space economy?
27:01 [Nimbus] Can we create an atmosphere on the Moon?
29:00 [Belos] Thoughts on the achievements of the Chinese space program?
33:02 [Lyar] Is dark matter just dust and gas we can't see?
36:04 [Zalcon] Will the public be informed if JWST suffers more damage?
39:07 [Arret] Is a nuclear ion engine a thing?
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4 авг 2024

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Комментарии : 428

@erasmix 5 месяцев назад

This is perhaps the nicest thing I’ve heard you say “You could have problems with a country’s government, but you would have no problem with the people. You would love to spend time with the people, and they would be warm and caring…” 💚✌🏽

@Bobsry16 5 месяцев назад

I agree!

@joebloggs396 5 месяцев назад

But some people can be brainwashed, like in India.

@everettputerbaugh3996 5 месяцев назад

A number of SR-71 pilots were impressed that the navigation module determined where it was by the time they had taxied to take-off position -- this in the 1960s. It used an IR telescope to locate stars and compare them to internal maps, had to be programmed in the shop in the hanger, and is the size of a washing machine. [Aircrews came to call it R2 because it was craned into position behind the cockpit.]

@Jimjef 5 месяцев назад

As a spy plane, I believe that included the high-resolution camera.

@user-je5do6jn2f 5 месяцев назад

Stellar navigation module.

@user-je5do6jn2f 5 месяцев назад

The Heliosphere is a hard radiation artifact to scrub from telescope imagery.

@realzachfluke1 5 месяцев назад

Very cool stuff

@michaelcarlin6049 5 месяцев назад

What an exciting time to be alive! Yep. That sums it up. Thanks again Fraser!

@t.a.r.s4982 5 месяцев назад

Hope you won't stop your channel, it's always getting better. Thx for the work

@jouniko 5 месяцев назад

Thanks for starting universetoday and this channel.

@mrln247 5 месяцев назад

Mars Guy is doing a great job of regular updates on the mars rover's, with Geology and wit.

@MyCodingDiary 5 месяцев назад

Great video! Very informative and well explained.

@music100vid 5 месяцев назад

CHELEB Great answer. Thanks for rounding up all the possibilities we can think of all in one answer. Makes it easier to lay that question aside and think about other things.

@officialgood-boy8946 5 месяцев назад

Question: Is it possible that the universal expansion we observe is due to time in empty space flowing faster relative to time in galaxies? The thinking behind this is that time in those empty zones would be getting ahead of time in mass rich zones and this would manifest in our 3d space as expansion assuming that advance ahead in time translates into more space between these points.

@music100vid 5 месяцев назад

What an interesting concept. I hope someone explores and elaborates on that idea.

@subcitizen2012 5 месяцев назад

Above my pay, but the math is all there to be done. A capable cosmologist or someone with a similar background in physics could probably figure this out on a napkin pretty quickly.

@mhult5873 5 месяцев назад

Andoria Thank you Fraser for another, as always, great video and thank you for all your videos 🙂

@muleskinnerfilms6719 5 месяцев назад

As usual, very well done

@dropshot1967 5 месяцев назад

I have been following the channel of the supreme space cat for a long time. I never paid much attention to her subscriber count and I am shocked it is so low. She should have 1 or 2 orders of magnitude more subscribers.

@savetheplantet5799 5 месяцев назад

Great ep fraser thanks again!

@AEFisch 5 месяцев назад

We grow in deserts and indoor long term with proper nutrients. We also have pumice and diatomaceous so why not a machine that processes regelith into a safe substance?

@rajahua6268 5 месяцев назад

Excellent questions and updates

@matthewring8301 5 месяцев назад

I’m excited for the new telescope I ordered today! It’s a pretty standard refractor, but it is connected to a phone app that will track the telescope position so that you can manually locate the object you’re looking for. Also added a solar filter for the eclipse. First telescope since I was a kid, now I’ve got a teenager that loves space.😁

@gravelpit5680 5 месяцев назад

best space news! love Fraser

@lurkst3r 5 месяцев назад

I read "Trappist-1 Atmospheres" in the headline and was like "ooooh, exciting!" ... click baited and not even mad! 😂

@MrSimonw58 5 месяцев назад

The click bait is can jwst see the moon ... through its sun shield ?

@lurkst3r 5 месяцев назад

I had a wee giggle at that question tbh coz theres a reason JWST is not looking at the moon ... to avoid the sun, otherwise that sun shield aint doin its job! 🤓

@davehoward22 5 месяцев назад

It's a bit far away

@NOMAD-qp3dd 5 месяцев назад

Enjoyable!👏👏👏

@saeedafyouni619 5 месяцев назад

Belos Sid Vicious question was the best, Fraser's answer is awesome, Thank you for the great content @frasercain, Anton and team Awesome as always

@paulwilson1529 5 месяцев назад

frasers knowledge is just incredible

@rossrhodes1963 5 месяцев назад

Belos Thx for the q&a

@Jedward108 5 месяцев назад

Thanks!

@jasonsinn9237 5 месяцев назад

Hey Fraser, in your opinion, what have been the most important astronomical discoveries, missions, and studies made over the last decade?

@stefanandersson7519 5 месяцев назад

Andoria And, speaking of relative velocities, here's a question for you: What would life be like in a galaxy that's traveling at 99% the speed of light? I mean both in terms of daily life, but also space travel? Thanks 😊

@jasonmoss6319 5 месяцев назад

Just heard the regilith issues, may I suggest mulch/ rock glue... so prior to landing probably on one of the orbits, while over the site spray down the area with glue , let it set up so the regilith stays in place, then they could use the same type glue to make walkways so then dust isn't an issue... Seems like the right thing to do, you know what's in the glue so it's not like uts gonna contaminate every thing... I think that's how they are gonna have to it, that way you only have basically one space suit that gets dirty, only use that one suit to spray the paths , I'm not sure how hot the surface gets in the sun light but obviously the glue could be just water , assuming the water would freeze on contact... yep that's how I would do it spray the area's lock down the dust .

@IARRCSim 5 месяцев назад

Anton Petrov is a great space science educator and youtuber. He is worth recommending. Anton Petrov, Fraser Cain, Curious Droid, and Sabine Hossenfelder are some of my favourite people for science, physics, and space-related news.

@freddan6fly 5 месяцев назад

I prefer Don Lincoln and Matt O'Dowd over Sabine every day of the week, because in some areas, Sabine shows some conspiracy thinking.

@goiterlanternbase 5 месяцев назад

@@freddan6flyThen you have to watch Anton🤣👍 Sabine is at least a professional, not just a gifted moron. If i look for space facts, i go with Dr. Becky. Boring but at least based.

@joebloggs396 5 месяцев назад

@@freddan6fly Also she brings politics into videos. Good mentions there too, and I do like channels without adverts. I won't watch RU-vid adverts as the company does allow bigoted channels.

@jonathanedwardgibson 5 месяцев назад

Lunar Reconnaissance images are not available to public. We get a handful of select scenes. Tiresome.

@frasercain 5 месяцев назад

Are you joking? You can access almost 540 terabytes of data from the main camera system here: www.lroc.asu.edu/posts/1359 lroc.sese.asu.edu/data

@EllyTaliesinBingle 5 месяцев назад

The way you address skepticism or paranoia about science is so much nicer and imo more effective than someone like Professor Dave.

@mikecolley- 5 месяцев назад

I like This!

@simian_essence 5 месяцев назад

I agree with Fraser about what comes next for the space economy beyond Earth orbiting satellites, with one exception: tourism. The key will be mature Starship, ~10 - 20 years from now. It's what I'd call the "medium term".

@patrickwest2288 5 месяцев назад

I didn't know that about the lunar landing sites. Thank you

@leonmusk1040 5 месяцев назад

Belos The neutrino detectors are awesome this will be the next big field in astronomy for certain

@vieleanimations 5 месяцев назад

Nimbus Love the idea, never thought of it and it's so smart. I want a green moon now

@AmethystValkyrie1317 5 месяцев назад

Can the mini solar sails that are going to be deployed used as relay stations for faster communication with satellites & telescopes in space?

@realfist1 5 месяцев назад

Hi Fraser, your reply to the question of the relative speed of us through the universe left me puzzled. Surely due to universal expansion our speed would be zero?

@codyross5364 5 месяцев назад

Been a fan since '21. I never comment... but my dude, I appreciate you so much. While all the exoplanet excitement still kinda bugs me, I'm still just so indebted to you. This channel is such an amazing bridge for myself and 4 other people in my life that I've turned onto you - namely my niece and nephew and two of my bandmates who discuss you, coolworlds, john michael gotier, and pbs spacetime together every couple weeks or so. All of us have academic and science backgrounds but none of us have any formal astronomy training. Just can't appreciate you enough Frasier.

@AliHSyed 5 месяцев назад

My favourite show

@michaelgian2649 5 месяцев назад

Missed last Monday's live. I wanted to ask about mycotecture and its relationship to terraforming in general. Fungi seem to have paved the way for other life here. Perhaps the key to converting regolith into soil?

@seditt5146 5 месяцев назад

Cheleb: I feel the industry that starts space colonization the most is going to end up being a thing we don't even expect right now. Some discovery is going to be made that creates a product that can only be made in space like special metal alloys etc. In space the metals will mix in ways we cant do here and the results might produce properties we can only dream of like magnetic or gravitational shielding etc. Stuff that cannot be created here. That will end up being so valuable it will kickstart our space exploration into high gear.

@steveleach6641 5 месяцев назад

Aetiren Considering that Mars has minimal/zero magnetosphere. Wouldn’t any terraforming created atmosphere be stripped away by the solar wind?

@frasercain 5 месяцев назад

Yes, but it would take millions of years. If you could do it in the first place, you can keep it topped up.

@music100vid 5 месяцев назад

I dismissed it out of hand because of that but, Fraser's comment gives me pause. Still, a Herculaneum task to install a complete atmosphere. And, there is still the problem of radiation for anyone on the surface. You'd have to install a magnetosphere too. So, again, not worth thinking about in the short term. And again, we need to be thinking about ways of preserving and keeping our Earth habitable above all else. What we learn in in astronomy and the impetus to technology it spurs will help us in that.

@simfromzim 5 месяцев назад

Thank you for all you do, Fraser and team 🫶🏾

@Strakin 5 месяцев назад

I think you dont take into account that there will be a acceleration in space exploration when rockets like the star ship are available. We have around 100 starts with the merlin now in a year. Imagine this with starship. It would be way cheaper to do many of the things you listed, like asteroid mining.

@Strakin 5 месяцев назад

And not to forget the knowledge explosion with AI in the very near future.

@antoniskarpanos 5 месяцев назад

Hey Fraser, I got a question: were should i sent my scientific discovery to be checked/promoted/be known to other scientists?

@nilshibyhansen1978 5 месяцев назад

Love Fraser and Anton 😊😊

@AEFisch 5 месяцев назад

And Mr Manley

@Butterworthy 5 месяцев назад

This may be a silly question, but for protecting equipment on the moon from regalith couldn't we make a sort "power washer" that could use things like liquid hydrogen to clean equipment during lunar night? There could even be a module that you put equipment in that blasts it clean with liquid hydrogen, then blasts out the remaining particulate using the vacuum of space. Then it repressurizes and you can walk right in and retrieve the perfectly clean gear.

@zapfanzapfan 5 месяцев назад

A couple of RU-vid suggestions: ParallaxNick, astronomy. Clara Nellist, particle physicist at CERN. Caltech Astro, public lectures in astronomy. RASC Toronto, amateur astronomy and public lectures.

@ReinReads 5 месяцев назад

Arret Nuclear fission powered Argon Hall Effect thrusters is what we need for crewed exploration of the outer solar system (Jupiter & beyond). Part of the space infrastructure you mentioned would be argon refueling stations orbiting Mars. Along with Oxygen & water.

@AndersWelander 5 месяцев назад

Maggie Lieu is great. ❤️ I'm wearing a Space mog t-shirt with the text "Everything sucks". I have lots of them. They show a cat being sucked into a black hole. Because every thing sucks and black holes suck a lot.

@Goatcha_M 5 месяцев назад

There is something a lot more visceral about looking at something through a scope, rather than just looking at pictures, even though the pictures are more useful.

@Rorschach1024 5 месяцев назад

Dealing with lunar regolith would be to put a combination tumbler/composter partially outside the airlock. You load the tumbler with regolith from outside the airlock, seal the tumbler. Close the airlock and do your dust purge cycle in the "mudroom" get out of your suit, and seal the mudroom airlock door, step into the second airlock chamber and do a second air blast dust purge, then enter the base. Meanwhile all the sewage and food waste gets piped to the rock tumbler/composter. After a few weeks, you go back to the mudroom, while wearing a dust mask and gloves, you scoop out the resulting organic compost and use that for plants.

@MaxBrix 5 месяцев назад

The question should be - is any of the dark matter dust, gas, brown dwarfs, rogue planets, plasma, neutrinos, black holes or any other undetected baryons? Or it could be - If we can detect everything why are we still finding stuff? I think many people have a problem with the suggestion that we know what information we do not have.

@Demane69 5 месяцев назад

Putting a 1 atmospheric pressure atmosphere around the moon would add considerable weight to it's mass. Being 1/6th the gravity would also mean 1 atm of pressure on the surface would require a thickness around the Moon far deeper than on Earth. This would likely bleed off easily (relatively speaking) creating a orbital tail that the Moon and Earth would pass through creating interesting affects (maybe visual?). The added weight could affect the orbit. I wonder if a dry atmosphere is enough for human purposes, as the Earth's atmosphere has considerable amounts of water in it, something often ignored when people speak of it.

@frasercain 5 месяцев назад

The orbit of the Moon depends on the mass of the Earth, not the mass of the Earth. So that wouldn't be an issue.

@Demane69 5 месяцев назад

@@frasercain There would be no barycentre shift? No affect on Earth's tides? Nothing at all? I can't currently visualize this as nothing. Technically, these are 2 orbiting bodies, affecting each other if ignoring definitional differences of whether or not the barycentre resides inside or outside of the radius of a planetary body. This is also not an isolated oribit, as the Sun affects both bodies both independently and as a whole.

@stuartmasters7506 5 месяцев назад

Hello Fraiser, Just to put a concern of mine out there. My simple brain has noted that the properties of dark matter are unknown then how can any observations be relied upon. Can you help please?

@stuartreed37 5 месяцев назад

Do we have any idea if dark energy could be the gravity of matter outside the known universe, such as other universes?

@PeterKnagge 5 месяцев назад

Spoiler alert: Interdimensional weapon from another extraterrestrial species

@idodekkers9165 5 месяцев назад

Hey Fraser what would be the down sides of connecting or tethering a Hubble class telescope to a space station? the benefits are obvious but I imagine there are some problems?

@carries6427 5 месяцев назад

I found the RISA question answer very interesting

@javaman4584 5 месяцев назад

That Jupiter mission with the ion engine was so under-powered that it was going to take three years just to escape Earth's orbit. Maybe that's why it was canceled. We need space nuclear reactors that produce tens or hundreds of megawatts, not kilowatts. For reference, a diesel-electric locomotive produces around 1.5 to 3 megawatts. The reactor designed for the Jupiter probe produced about as much power as a Honda Civic.

@cacogenicist 5 месяцев назад

Isaac Arthur would be great interview -- it's been a while, yes? There are few people more conversant in topics like space settlement, space megastructures, the Fermi Paradox, etc, than Isaac.

@archmage_of_the_aether 5 месяцев назад

Sir, my question: I saw a list of the recipients of the Bennu samples; on this list, the sample going to India, was going to the Science and Spirituality Research Institute (Ahmedabad, Gujarat), an institution dedicated to marrying the scientific and the spiritual methodologies to advance science (and spirituality, I suppose). That's great, but I am curious, why are they getting one of 38 samples? Were they donors? I could imagine more illustrious institutions in india, including the ISRO, and great universities.

@ninjalanternshark1508 5 месяцев назад

Space Mog !

@TriuraniumOctoxide 5 месяцев назад

Maybe too late, but my submission for a small YT channel that deserves a shout out: Anthony Francis-Jones. It's for a younger generation, but this Cambridge Science major, whose now a teacher, has been pumping out great vids for a long time - all with massive enthusiasm, lots of topics covered often with practical experiments, and is a fantastic channel to recommend to your young friends embarking on an interest in all things science. Would love you to give his channel a much needed bump!

@alexpumpkin4551 5 месяцев назад

I love the channel but we know peoples last names a lot of times are based around their ancestors craft. Is Weiner-smith like a metal smith? Working that hard steel haha. They might want to shorten their name to Smith as well. Just a thought ha.

@MusikCassette 5 месяцев назад

Re Cheleb exactly right. the point of asteroid mining is to supply infrastructure in space. But that is not just space exploration. that includes commercial satellites. One big game changer would be - In space second stage reusage. If you could refuel a second stage with fuel, that you do not get from earth, that would be a way higher value, than bringing it back down for the next launch.

@musicman2001 5 месяцев назад

I want to feel seeing it with my eyes for real. If I just want pictures can see that on line why spend all that money for a telescope. As always great stuff and info Fraser! Thanks'

@OlliGarch 5 месяцев назад

Yea that telescope sounded great until I heard that part about it. Maybe they will find a way to put an eyepiece on it and also make the price cheaper do hobbyist like myself could afford one.

@disinclinedto-state9485 5 месяцев назад

Hey, Fraser. What law(s) of physics is responsible for type 1a supernovas always being the same luminosity? Presumably the star-pair involved in any such event is never *precisely* the same as any other star-pair, so where does the uniformity come from?

@frasercain 5 месяцев назад

It comes from the fact that they come from white dwarf stars which have exactly 1.4 times the mass of the Sun. When a white dwarf is feeding on a companion and reaches that point it collapses.

@KarelGut-rs8mq 5 месяцев назад

It's the electromagnetic force. The strength of the force is overcome by gravity when the mass reaches 1.4 solarmasses (discovered by Chandrasekar). Stars are black body radiators so mass is the only factor that influence the brightness of a star, that is what makes Type 1A supernovas so useful, they are all of equal brightness when they blow.

@ryanabrams5980 5 месяцев назад

Hey Fraser so how much bigger does a galaxy have to b in order to be seen 13 billion light years away when it's imaged it looks like it the same size as a galaxy 1 billion light years away

@aurtisanminer2827 5 месяцев назад

1:40. When someone asks how fast I can run I’m going to use this number.

@ashleyobrien4937 5 месяцев назад

One thing that always bugged me about Ingenuity's design was the clearly non aerodynamic shaped cube under the propeller assembly-like it's clear that every advantage should be taken due to the low pressure minimal lift etc, why not make the cube tear shaped for better airflow over it's surface ? seems odd to me.

@Rorschach1024 5 месяцев назад

Atmosphere is so thin that it would not matter very much. And the additional weight would have just made things even harder.

@frrapp2366 5 месяцев назад

evidently the air is so thin is doesnt affect the performance very much but would be interesting to see the wind tunnel /vac chamber tests! i have wondered about a dirigible with rotatable props , know they developed a couple of balloon type systems that were either lost or never developed beyond concept

@nerufer 5 месяцев назад

@Fraser a question popped up when listening to OSIRIS-REx question; as a person that does sampling, I know it's of absolute importance to have a homogeneous sample to make conclusions. So are asteroids considered a homogeneous mass?

@frasercain 5 месяцев назад

This will probably be one of their questions. The Hayabusa 2 folks all kinds of interesting material in their samples, like amino acids. So I doubt each sample will be the same.

@rogerdudra178 4 месяца назад

Greetings from the BIG SKY.

@simian_essence 5 месяцев назад

As regards the lunar regolith issue, wouldn't some sort of binding material having electrostatic properties be the best solution? I know water 💧 has this function but it's expensive to transport from Earth and probably quite expensive to extract from lunar deposits. Could applying a voltage directly onto the regolith itself be a solution or would it have to also have some other binding material?

@PorchPotatoMike 5 месяцев назад

Since Jupiter is a gas giant, if you were to blow the atmosphere off, would anything at all remain? I heard the core is metallic hydrogen, but would that sublimate back to a gas as the pressure lessens?

@vls3771 5 месяцев назад

Most say they are not sure if Jupiter has a core at all we don't know but best guess is metallic hydrogen ...your correct in saying the pressure turns the hydrogen to liquid metallic how much gas and cloud is removed before the liquid turns back to gas,? it would have to happen slowly ...it's a tricky question .

@cassyswan9112 5 месяцев назад

It's not a RU-vid channel but the exocast podcast on Spotify is excellent

@TechNed 5 месяцев назад

I think the announcement from CNSA that international astronauts will eventually be able to spend mission time on the Tiangong space station is quite generous, considering the politics of the ISS.

@lafelong 5 месяцев назад

How does an observation of the current acceleration of expansion of the universe definitively rule out or disprove a future slowdown and/or contraction?

@bimmjim 5 месяцев назад

@Fraser Cain :: Thank you very much for NOT putting music on your videos. 🥸🙋‍♂👍

@leonmusk1040 5 месяцев назад

Lyar they have also seen quite a lot of new stuff from passed the zone of avoidance with neutrino maps

@Rorschach1024 5 месяцев назад

Arret, you can actually use a once through coolant (like a NERVA type engine) that then uses an ion engine as an "Afterburner" for the exhaust to give it just a little bit more velocity.

@unheilbargut 5 месяцев назад

Wouldn‘t it be possible to work with electric/static charges to get rid of the lunar regolith? If they put a charge into their suits and the lunar dust gets charged and before you enter the airlock, you flip the charge and send the dust flying. This could be even more effectiv if there was a magnetic shower in front of the entrance, where an apparatus doesn‘t shower the astronaut with water but withan electric field that attracts the charged soil particles. So there is a pushing force from the suit and a pulling force from the „shower“. In my doofus head this makes sense.

@meesalikeu 5 месяцев назад

fraser did you see, well of cours you did, but kuiper belt quaoar has rings? and the ring is way further out than thought possible -- can you discuss next time ? gracias -

@chrisclark6154 5 месяцев назад

The sharpcap polar align routine takes me about 5 minutes max and gives me polar alignment good enough for long exposure photos.

@frasercain 5 месяцев назад

Was it always the case? Did you never have an evening when you first got a telescope and had a difficult time aligning it?

@chrisclark6154 5 месяцев назад

Way, way back in the mists of time but we've had built in polar alignment scopes for over 40 years now. A little practice and familiarity with your equipment makes it straightforward. Modern equipment and software does make it ridiculously quick and easy though :) @@frasercain

@glassramen 5 месяцев назад

I assume the best solution to the lunar regolith, namely the dust that is a hazard when sticking to your suit, would be a wash wherever an airlock would be. Say you went out for some reason and came back to the habitat. They could have a shower system that would just filter out and recycle what little water it would take to wash most if not all the dust off your suit. A similar thing could be done for any you need to bring in as you said with just wetting it. It wouldn't be too difficult. Another solution would be to vent air into the room to knock it off the suits while a vent in the floor beneath a grate would suck the air out with enough force to, while probably not getting the heavy bits, pull away the pieces small enough to become airborne. I think there's a number of ways it can be tackled that would make it much easier to deal with.

@musicbro8225 5 месяцев назад

RISA: I'm intrigued by China's idea of making bricks. They will send that lander with the brick molds and microwave (?) kiln up nearly 2 years before the manned mission, so I would guess there would be a big pile of bricks waiting for them when they got there, to build habitat, foundations, Walking paths, a swimming pool? The surface around a habitat could be fused with a scanning laser? The Moon would make a cheaper starting point for exploration of planets and asteroids etc. There could be a couple of reusable ships that can be refueled from the moon then sent out many times with the same equipment on board to a different planets or moons, then returned to our moon-base?

@subcitizen2012 5 месяцев назад

Draw up an estimate of the cost for that on earth, then multiply it on by a million to have it on the moon. That's the problem. The engineering part is easy. Getting someone with money or governments to pay for it to be on the moon is the hard part. Figure the first part out and the second part is pie.

@glassramen 5 месяцев назад

@@subcitizen2012 Oh I'm well aware of that, it's just that if there's already going to be a habitat put on the moon then the cost is already going to be huge, and the reduction of maintenance cost and the health and safety of the personnel would probably far outweigh the upfront cost of it.

@247tubefan 5 месяцев назад

So we are all traveling at Warp Speed already. Or at Ludacris Speed in the Spaceballs category.

@bobologic6849 5 месяцев назад

Aeturner, having a telescope of my own that is easy to use, brings astronomy directly to me, almost like door dash

@inexister7371 5 месяцев назад

For dusty lunar regolith problem... what's stopping us from simply laying out an irrigation system akin to garden variety water drip lines? Make a large grid around any inhabitable base and start moisturizing the moon! (Assuming we can create or bring enough water.) Then maybe add a plow rover that drives over and churns this stuff until it's lovely to the touch between our toes?

@jondoc7525 5 месяцев назад

You would be mixing ice which is extra hard at those temps . We prolly can smooth it out somehow .o heard electrostatic crap

@Yattayatta 5 месяцев назад

What is next after Satellites, it's production, what the wieners completely missed is that you can produce different things in microgravity compared to a heavy gravity well like earth. For example a fiber cable produced in 0g has no faults, it's a perfect light transmitter, that is impossible to produce here on earth. The same goes for growing organs, producing medicine and many other things, in fact if you look into the experiments on many of these commercial launches they are already micro gravity production experiments.

@NunoPereira. 5 месяцев назад

Due to the strong winds on Mars what's the chance that the regolith samples that Perseverance is leaving on the ground, will be blown far away or covered with dust, thus not recoverable by the Mars sample return mission?

@Demane69 5 месяцев назад

The power of the wind is depended on the thickness of the atmosphere and speed, and Mars atmospheric pressure is over 100 times less than Earth's. Far more time would likely need to pass to see levels of wind impact we see here on Earth. The degree of wind erosion and levels of dust covering surfaces should far less over periods of time than on Earth. The winds shown on the Martian movie that blew equipment and people away is for dramatic effect, and would be barely noticeable in reality.

@music100vid 5 месяцев назад

SCIENCE COMMUNICTOR Shawn Willsey, geology professor seems to have the same concerns and philosophy as you do about science communication. With his recent coverage of the Iceland and Hawaiian volcanos his subscription level is almost 100K, which is outside the parameters you are looking for but, it would be cool to have him in on a Collab with you on science communication. He did a Collab with another geologist (I will look at that and see how well that fellow is aligned with you all's ideas) Maybe a 4 way Collab would work.... or get pretty lively and crazy! 🤪

@billruss6704 5 месяцев назад

Talking about first time seeing a rocket launch, I sometimes forget how lucky I am to be able to watch them from my back yard. Even more so now Space X is doing launches every week or so.

@oldrichzapletal7987 5 месяцев назад

It is interesting that when they asked a scientist who was building JWST, what ability it will have, he said (if there was a bumblebee on the moon, we would see it).

@douglaswilkinson5700 5 месяцев назад

Both Betelgeuse & Proxima Centauri are spectral type M. To the human eye Betelgeuse looks reddish & Proxima looks white. Why?

@JamesSwafford-hf9bo 5 месяцев назад

The solution to material on the moon is the areas on the moon needs bound into a solid. Rockets could land and take off and habitations won't have near as much to keep out.

@JamesSwafford-hf9bo 5 месяцев назад

Rover with a 3d printer circling out like paving a parking lot but using what is there already to print with.

@BabyMakR 5 месяцев назад

Cheleb. What if you combine space mining with space manufacture?

@ernieblue5307 5 месяцев назад

I’ve always wondered why such a colossal 33 ft. wide x 360 ft. high, 6,500,00 lb. Saturn V booster was needed to lift the 3 Apollo astronauts with lunar modules beyond earth’s gravity, but only a tiny, roughly 2 ft. x 6 ft. engine was needed to lift 2 of the astronauts with the Lunar Module ascent stage beyond the moon’s 1/6 gravity. Can you explain why there is such a huge difference?

@billruss6704 5 месяцев назад

I think that the fun of looking through a telescope is LOOKING through the telescope.

@dadsonworldwide3238 5 месяцев назад

National Park, camp site astronomy could be a nice pass time and worthy customer.

@revmsj 5 месяцев назад

Hooray! Fraser and I won last week!👍🏾

@frasercain 5 месяцев назад

We did it!

@lafelong 5 месяцев назад

Question: How do astronomers account for younger galaxies/stars whose light has not reached us yet and are therefore unobservable?

@nirbhay_raghav 4 месяца назад

Small correction: OSIRIS-REX collected about 120 something grams of material as opposed to 250g what yoh said. It was supposed to collect 60g and its great! Just completed the video. The idea that moon can sustain an Earth aize atmosphere for thaaaat long is amazing. Is it viable by redirecting comets to the moon? How many comets would it take? That is without significantly affecting the moon's orbit!! Idk just speculating.

@blablabla3452 5 месяцев назад

Question, from a photons perspective (if there was such a thing) is travel instant? And what about photons coming our way from galaxies that move away from us faster than the speed of light. Will those photos never arrive?