Evolving Dark Energy // JAXA's Moon Rover for NASA // Eclipse Experience

New measurements show dark energy may be evolving, Japan is joining Artemis with a pressurized rover, why the Moon has two different faces, and my experience with the total solar eclipse.
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00:00 Intro
00:16 Dark Energy might be evolving
www.universetoday.com/166508/...
04:44 JAXA's Moon rover
www.nasa.gov/news-release/nas...
06:52 Moon's two different halves
www.universetoday.com/166588/...
08:57 Ice-melting probe
www.universetoday.com/166548/...
10:51 Vote results
• Vera Rubin's Big Miles...
11:24 Rainbows on exoplanets
www.universetoday.com/166535/...
13:21 Small black hole
www.universetoday.com/166566/...
14:30 Solar eclipse 2024
www.universetoday.com/166596/...
16:44 Two cool videos
www.universetoday.com/166612/...
18:24 Even more space news
19:09 JAXA is so cool
Host: Fraser Cain
Producer: Anton Pozdnyakov
Editing: Artem Pozdnyakov
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[@eristhekerbal2294]

I recently found you, Frasier, and your channel, plus Universe Today, has reignited my passion for space and astrophysics

[@frasercain]

Oh great, that's amazing to hear. :-)

[@eristhekerbal2294]

@@frasercain I’m currently teaching myself calculus so I can go back to college for physics

[@mrbamfo5000]

​@eristhekerbal2294 How's that working our? Seems like if you're going back to college anyway, just take a calculus class.

[@eristhekerbal2294]

@@mrbamfo5000 I’m currently working in a factory full time and I don’t have the time nor the money for college classes, so teaching myself with textbooks and online resources is much cheaper and easier for me at the moment

[@MichaelWinter-ss6lx]

@eristhekerbal2294, remember what Frank Zappa once said: If you want to get laid, go to collage, but if you want to learn, visit the library! That was years ahead of www. 🚀🏴‍☠️🎸

[@mt-mg7tt]

I must say the Toyota branding of the Japanese pressurised rover made me smile. You just know it will be reliable. Just a bit expensive if you break a tail-light or headlight moulding :-) .

[@ACMichler]

Id love to hear an interview with someone at JAXA about thier diffrent approach to space missions than western space agencies.

[@m.branson4785]

I'm a simple man. I hear the words "baryonic acoustic oscillations", and I click like.

[@michaeljames5936]

I'm a complex person. I see someone writing 'Baryonic Acoustic Oscillations' in the comments and I click 'reply'...and 'like'.

[@holographicman]

I'm observant. If if see people liking and replying about baryonic acoustic oscillations, i observe and like and reply

[@michaeljames5936]

@@holographicman New evidence is coming in all the time, but (and this is hypothesis only at this early stage.), but it appears that, even a reply to a comment, about Baryonic Acoustic Oscillations, which itself contains the words BAO (in full) 'causes?' me to like and reply. Science moves quickly.

[@JamesCairney]

Im arrogant, I see "baryonic acoustic oscillations and think "I have a theory!" Im probably wrong, though my arrogance says I'm right.

[@debranelson1987]

@@JamesCairney I'm musically inclined and when I see Baryonic Acoustic Oscillations, I think when is the next album due out...😎

[@BIGREDDOG09]

we got lucky with the total eclipse as well, cloud coverage completely disappeared right before it started. Blessed to have the opportunity to watch one without having to travel anywhere!

[@unvergebeneid]

I can't believe this was your first solar eclipse! I was lucky enough to have caught the 1999 solar eclipse and it really was an indescribable moment.

[@frasercain]

We had clouds in 2017.

[@billmiller8945]

Mr. Cain's channel is the Mr. Rogers Neighborhood of Astronomy. Always respectful, no inapproriate innuendos and always family friendly. Can anyone come up with something as catchy as "It's a Beautiful Day in the Neighbood" kind of jingle for him. Mr. Cain, we all grew up with Fred Rogers and you are in good company. Thank you.

[@cuteswan]

Just what Fraser has always wanted: reaction wheels that break even more easily… 😜

[@MCsCreations]

Thanks for all the news, Fraser! 😊 Stay safe there with your family! 🖖😊

[@howaboutataste]

I'm down for an RV trip across the Moon. It'd be even better with a lunar orbiter that looked like the Winnebago from Space Balls.

[@absalomdraconis]

Suggest it to Musk, I'm sure that he'd be up for commissioning a plushie of the Eagle 5 as a zero-gee detector (or whatever that phrase is).

[@joeymillette5870]

Having witnessed the 2017 eclipse in Hopkinsville Kentucky with my sons it was a no brainer that we travelled to Southern Ontario from Sudbury for the eclipse. Friends of mine from Hamilton joined us and with the weather forecast not looking so great we headed further south and found a ball park in Selkirk. I had planned to take video of totality but due to a camera failure on arrival I found myself absorbing the view with my own eyes the entire time. I regret nothing! Eclipse chasing is a great excuse to travel.

[@LouisianaAstroRambler]

The eclipse was amazing.. I got the chance to experience up in the Ozark mountains in northwest Arkansas.. I'm just mad at myself for recording video only, when I should've taken a few pictures as well since my phone tends to take higher quality photos compared to videos.. Now all I've got is a bunch of grainy videos and screen shots lol.

[@GadZookz]

Some emergency lunar pogo sticks should be onboard the moon rover so the astronauts could bounce their way back to base amp in case the rover gets stuck on the far side. 🤔

[@snezzles278]

and a cell phone to film it with

[@JilynnFurlet]

@@snezzles278 With an 8K camera.

[@aureaphilos]

I totally agree with your emotions during the solar eclipse! For me, experiencing totality (2m20s at Vergennes, Vermont) was one of the greatest experiences of my life; right up there with reaching my first Rocky Mountain summit (11,600 ft), descending to the 6350 ft level in the Homestake Gold Mine (Lead SD), watching a NASA rocket launch from the VIP viewing area at Cape Kennedy; riding one of the new TGV high-speed trains in France, in 1982 (256 km/h). I don't think Iceland's infrastructure will be handle the influx of as many tourists coming as came to Vermont for this eclipse (estimated at 160,000), so I might head for Barcelona, Spain. Great show! Packed with lots of fascinating segments... as always! Thanks Fraser!

[@EMichaelBall]

Be aware that Barcelona, itself will be outside of totality. Valencia will be in it. Gijón will be in it (it’s not as sunny as Valencia, though you can visit the museum Fernando Alonso designed for himself). Going inland away from the coasts should on paper get you the best views. Well, there is Majorca, but that’s expensive…

[@mypridemonth]

Absolutely love JAXA and their collaboration with NASA. Nippon!! 😍🎌

[@Eamenic1]

FRASER!!!! I drove from Austin to central AR to see the eclipse because the TX weather had me very very worried. So glad you got to see it!!!!

[@charleslaurice]

I’m on the edge of my seat every single time I watch your video . Thank you so much from the Philippines 🇵🇭

[@MCsCreations]

Fraser, I have a bad feeling about Moon rovers with AI... I hope none of them have Hal9000 installed. 😬

[@billmullins6833]

As long as they don't try to make the AI lie it should be okay. That's what drove Hal around the bend.

[@olorin4317]

Nice week for space news. Thanks Fraser.

[@jt9602]

Great stuff as always, thanks for all your hard work space bites! So many channels are just clickbait trash with clips of things that have nothing to do with the content.

[@mikemann2053]

That was a great ep thanks Fraser.

[@estraume]

I live in Iceland, and I plan to watch the eclipse, however, I think the weather statistics for Spain might be more favorable for successful observation.

[@heaslyben]

Nice! That's awesome the weather worked out 😎

[@snezzles278]

I'm so happy you got a good view of the eclipse! :)

[@privateerburrows]

I never heard of Kheops; how is that possible? Kheops should be all over the news and the internet.

[@frasercain]

Cheops. www.esa.int/Science_Exploration/Space_Science/Cheops The mission has been around for a few years.

[@Wrbps2000]

Took my my kids and partner to see the eclipse. It really was amazing

[@AdamosDad]

This was my second total eclipse, in beautiful weather. I feel blessed.

[@markmarkmark08]

Thanks for another great content

[@coulie27]

Most excellent! First time seeing the shadow cross from space! Always wanted to see it so I made my own simulation, the real thing is so cool

[@billmullins6833]

Regarding a Japanese astronaut becoming the first non-American to go to the moon. At the rate NASA is moving with Artemis, the Chinese will already have a base established and 1,000 people living and working there!

[@IMBlakeley]

Hopefully the competition will once again spur on the space race.

[@billmullins6833]

@@IMBlakeley With as bureaucratically hide bound and rigid as today's NASA is I doubt it.

[@richmon78]

For the SLUSH mission, I hope they include similar detectors as used to listen to whale sounds in the ocean. It would make sense that if something evolved in an ocean world, then it would have evolved to use such a convenient method of communication as liquid reverberations.

[@e.palpatine2464]

Thanks Fraser.

[@TheEducat0r]

From evolving dark energy mysteries to lunar rover collaborations, this video has it all!

[@bbbenj]

Thanks a lot 😊

[@itsmodsiw]

love it!

[@caerdwyn7467]

We should just outright give Chandra to JAXA. They can handle it. We can't, apparently.

[@EMichaelBall]

Elon can buy it.

[@markanderson3740]

Glad you caught the eclipse. I found myself halfway up the coast of New Brunswick with a perfect sky and 15C. On a concrete pier, which showed the ripples perfectly when you looked down. Worth the 10 drive, 3 up and 7 back. Strangely half the population of Nova Scotia was driving back at the same time on the same road.

[@tomschmidt381]

We live in southern NH so were slightly out of the path of totality but my wife and I had fun viewing the eclipse with a pin-hole box. We were lucky as the weather was perfect.

[@bonerici]

My first total eclipse too. you can prepare all you want but if will still surprise you

[@loomysh]

i'm glad the dark energy is not this boring stuff everybody thought and that there are new things to learn about it. maybe we will be amazed

[@HisBortness]

I live right on the centerline of the eclipse in western NY. It has been a dream of my life to see a total solar eclipse. So, of course, it was totally overcast from horizon to horizon. But, this allowed for a very unique and unexpected experience: when viewing totality from underneath overcast skies, you can see the umbra shadow (and subsequently its endpoint and return to the penumbra) projected onto the cloud layer as it passes overhead. Pretty dramatic. This whole experience is basically gonna force me to fly to Australia in 2028. I need to see one in clear skies now.

[@alexjustalex_]

I would have loved to hear comments on the solar flares all around the Sun during totality as well, it was amazing!

[@scottangle3118]

I wonder if you replaced the batteries on the old lunar rovers at the Apollo sites if they would work today?

[@unvergebeneid]

I somehow doubt it. Those things sat in a vacuum for decades, with extreme temperature swings, a hash radiation environment, the regolith floating around and they were never engineered to withstand any of that. You should at least bring your soldering iron, some fresh lubricant, a new set of tires and a couple spare parts.

[@sea-ferring]

The 2028 eclipse is going to be in New Zealand too - jeez!

[@AdamosDad]

The Moon has been our shield, another thing that makes it special.

[@Goatcha_M]

What happened to the pressurised rover they had in the 2000s that James May took for a drive? Was it just too heavy?

[@jasonboard572]

Hi Fraser glad you got to see the Ecliipse, I saw my eclipes in the UK back in 1999 under cloud ! Unrelated to your interesting eolving dark energy, is Am I wrong, but surly if they are going to catch the boster or Starship they must have stick out catching mounts of some sort, as there is no way you can catch just, on what looks like a ball joint off a trailor lifting points? Sorry for the disjointed question.

[@duncanbeggs4088]

Those are some big mountains for Dallas!

[@eneslem]

Hey Fraser, Anton, in his video on the gravitational wave detection from the neutron star collision, said it was unknown what the 2nd objective was. You seemed confident that it was a black hole. So, do we actually know if it was a black hole?

[@frasercain]

It's an object more massive than the most massive neutron star seen.

[@tyrport]

Does dark energy have to be pushing out or could it be pulling out. Could the Big Bang be a big suck.

[@EMichaelBall]

I’ve thought similarly.

[@dalwanir]

Hey Fraser, I was in Texas as well for Eclipse. I was delighted to see something that I never expected to see... prominences. Did you see that as well? Can you talk about it. I had never heard about it until I saw them and researched about them.

[@frasercain]

Yup, down at the lower right was a huge one. I was surprised to see it too.

[@ioanbota9397]

I like this video its interestyng

[@bmwolgas]

I got to view the eclipse from Ohio, and thankfully the skies were mostly clear. No photo or video adequately represents what it is like to see in person. The light from around the sun during totality was a lot brighter and whiter than I was expecting. Also, the few minutes before totality are interesting in that it is still fairly light outside even with only 1 percent of the sun coming through. That light though has a very strange look to it - to my eye its color temperature was a lot bluer than normal sunlight and it almost has an artificial look to it like somebody replaced the sun with a blueish-white headlight from a car.

[@smeeself]

The fact that the edge of shadows get sharper near totality probably contributes to that strangeness.

[@dustindude4995]

Couldn't make it to the end; my vantage point for the eclipse was central Texas. I'm glad others had better equipment and views. I'll come back around to it when I can accept the sky isn't trying to hurt my feelings for the third time in a row

[@LordPhobos6502]

Definitely want to hear more about those Europan squid! The melt probe sounds fascinating & promising... but how is it going to transmit data back through the ice???

[@alexisdespland4939]

what do you do with you eclispe glasses.

[@paratracker]

A question for you (besides the one I added to Q&A 254). I've heard a lot of people saying that the total energy in the Universe is ZERO and that the negative energy of space is what balances the positive energy of matter (and presumably radiation) so we can end up at zero. The colossal energy of the Big Bang is offset by the vacuum energy of space, but Dark Energy is forcing space to expand, thereby creating more space (with more Dark Energy), so Conservation of Energy is invalid or just 'local' like General Relativity? What?

[@DexLuther]

Couldn't a largish collision on the farside of the Moon cause a volcanic eruption on the near side? This would have had to be when the moon was more active (as I understand, the Moon's core is dead now). Kind of like how you make a baby burp by tapping it's back. EDIT: would have been cheaper for you to come see the eclipse here in Montreal. It was a nice sunny day, so I got to see it. It was really nice. It was kind of eclipse mania around here. It's all people talked about for a while leading up to it and a few days later. I think it was amazing if it gets people (especially kids) interested in science and space.

[@hatterson]

Can gravitational wave detectors be "pointed" to certain areas of the sky like telescopes can be? Obviously for the ground based observatories we have now the arms can't be moved, but if you want to know if there's gravitational waves coming from a certain area of the universe is there anything you can do with the detector mechanisms to listen to or watch that area?

[@Midatlanticriverrat]

hey... has anyone ever seen northern lights during an eclipse? because if the answer is no, then perhaps going to Iceland to see that eclipse might be awesome

[@javaman4584]

The eclipse is in August, and the aurora season starts in September. It's possible, but very, very unlikely.

[@EMichaelBall]

Iceland may have cloud cover. I hope it will be sunny.

[@emotionice7967]

It would be very interesting to know if the acceleration of the universe is a steady, continuous acceleration or if it fluctuates and is sometimes stronger and sometimes weaker while maintaining an overall trend. Much of what we observe seems to have randomness sort of built-in. Of course, we could never say that it is continuous as long as we dont see any evidence against it because we might not be measuring it accurately enough to detect the fluctuations.

[@jacobjacob5735]

I was wondering if he fist stage of starship with the 33 engines behaves like one single engine when just looking at the thrust. Because there is also one single mach diamond created by all of those engines and they are also quite close to each other. Have there been any articles/ papers on that topic?

[@w0ttheh3ll]

That reminds me a lot of the rovers from The Martian. Seems like the moon has almost ideal conditions for off-roading in such a vehicle: no aero drag, low gravity, decent terrain, plenty of sunlight - one problem might be the long, cold nights.

[@simonkristensson3077]

Changes in what direction of the DE?

[@hiramhill1305]

Will you talk about the PACE Mission next week since it released its first data yesterday? You can now process it yourself. And NASA Ocean released pre-processed images on instagram. Or will you wait till they've released more data/images or discovered something?

[@anthempt3edits]

Toyotathon on the moon!

[@GizzyDillespee]

I'd've blurred that out...

[@RectalRooter]

I'm pessimistic aboot a pressurized rover. I just can't see them being able to keep it light enough to be able to launch it to the moon. I do hope they do it.

[@metatechnologist]

So did the neutron star "fall in" or "collide" with the black hole??

[@kx4532]

TOTALITY! 🌑

[@JAGzilla-ur3lh]

Now we're going to need a road trip comedy movie about two astronauts with polar opposite personalities trying to get along while they spend thirty days on a long-range moon rover expedition.

[@adrianworley7060]

On Patreon, for me at least, the video suddenly stops towards the end, but watching it on KZbin, that is not the case.

[@universemaps]

Amazing news! So you didn't say if the preliminary results show dark energy is augmenting or diminishing

[@unvergebeneid]

It's augminishing!

[@tuckfeem0834]

9:07, is an alignement of all the planets actually possible and what are the potential effects on earth?

[@loomysh]

so next eclipse will be in spain and portugal? thats actually much closer for me from slovakia. so we'll meet there? :D it would be awesome to see it in person. but i would be bummed if the clouds didnt clear like in your case

[@EMichaelBall]

Burgos, Soria, and Calatayud should be fine. Nothing surefire like Mallorca, though.

[@bonniebarton6061]

Hi Fraser, Why does everything in the galaxy just orbit around the giant black hole in the middle? Why haven’t they all fallen in to the black hole. Or is it due to time dilation that we just haven’t seen it yet, maybe everything has already fallen in to the center of the black hole? The objects orbiting closest to the black hole are traveling so fast that it looks to us like their time has stopped?

[@mattkeith530]

That's interesting that the heaviest gravity on the moon is on the far side. I would have thought the "heaviest" part would have been facing the earth and caused it to lock in place facing the earth. Question. Do we know why the far side is the densest ?

[@derRoteKampfflieger]

I came to ask about that myself, thought I'd search for the answer first. That definitely seems counter intuitive. Have you found anything further on this?

[@CliveManns]

Question: Do satellites transport heat from the day side of the Earth to the night side? If so, will large constellations of satellites have a measurable affect on that area of space/atmosphere?

[@RonMar]

The first lunar RV!

[@Shanghaimartin]

I reeeeeaaaallllllyyyy hope they do an ice melting probe to Europa in my life time. Unsure if that'll happen though. Assuming normal health, I recon I got about 30-40 years left :(

[@CrasyFingers]

in texas or other places in the path of totality in the US could you see the alignment with jupiter eclipse venus saturn mars? i saw jupiter eclipse venus from my location, why aren't there more people talking about this? i feel like it's super cool

[@Kenneth.Walbum]

Does anyone know how the pressure in the ocean on Europa compares to the pressure in the ocean on Earth?

[@edishdraws]

Hey Fraisier i wonder how the slush probe will communicate and send data to earth beneath all that ice? Have they addressed this issue ?

[@frasercain]

It unspools a fiber optic cable behind as it descends that connects to the surface.

[@edishdraws]

@@frasercain thanks for the response! I figured something like that but then I thought man thats about 100 km of cable youll have to take all the way to the outer solar system! Theres gotta be another way!

[@NomadUniverse]

8:05 is basically Minmus. Did a double take thinking it actually was and someone put it in for fun.

[@greggweber9967]

How often can it be depressurized and repressurized? Think of the submarine with insufficient high pressure air to fill its ballast tanks in order to rise up again to the surface. Airlock? Could a small airlock be at half or less pressure if they are in spacesuits and then equalize pressure with the main cabin?

[@leonmusk1040]

Plz tell me they call it a moon cruiser I'd go drive on the moon if I got to drive the new moon cruiser they need tape measure for longest jump on the moon :)

[@holographicman]

Lets bite that space! goooo!

[@HansMilling]

In Denmark we call them bi-suns, as bi=2 in Latin/chemistry as the sun has two extra suns on the sides.

[@Djfmdotcom]

DESI is probably the one I'm most excited for/focused on. It's going to be a game-changer for the study of dark matter/dark energy. Vera Rubin is a close second 👽

[@frasercain]

DESI, Euclid, Vera Rubin and Nancy Grace Roman. Answers are coming...

[@GrouchyHaggis]

If the far side has had more impacts and the far side crust is thicker, isn't it safe to assume that's why it's thicker?

[@RichardIresonMusician]

I'm sure there are good scientific reasons for thinking that there is a force "pushing" the galaxies apart with ever greater effect and not some force "pulling" the galaxies apart with ever greater effect. Can someone explain those reasons please, many thanks.

[@kelton5020]

So what were the tentative results for dark energy?

[@j7ndominica051]

Sorry for offtopic. Why was there a call for a special "Moon time zone," and Earth-based universal time coordinated is not sufficient? It was reported on the news that the Moon has different gravity, and that influences passage of time by a microscopic (or "nanoscopic") amount. But we don't need an orbital time zone and an interplanetary space time zone where gravity is different too.

[@joaodecarvalho7012]

On the Moon, it must have something to do with tidal forces, as they coincide with tidal locking.

[@Shaden0040]

Is it possible that dark energy is caused by the particles and antiparticles of the quantum foam moving into and out of our universe? Cause that those particles have to be using energy from somewhere to come into our universe and then they annihilate each other and go back? could that be where dark energy is coming from the quantum foam interaction with our universe?

[@LevineArch]

Here for the Europan Space Whales.

[@Norseman_Wiking-soul]

It's God Growing :)

[@greggweber9967]

8:50 I assume that they eliminated more craters on the far side because a percentage would have to go through the Earth in order to crash into the near side of the Moon. Another possibility is something whipping past the Earth, speeding up and crashing harder and deeper, producing Seas.

[@BabaGanooy]

Theory: what if all these galaxies, stars and whatnot are just expelling material throughout the universe and we are detecting that as dark matter? Because it thins out so much through the universe it's not detectable at this time. It could also explain the expansion.

[@doncarlodivargas5497]

Perhaps we could collect dark energy and use it to move stuff, like a kind of a hydraulic system? In mines for example, lifting the materials up to the surface with dark matter, environmental friendly technology

[@lenwhatever4187]

+1 for a pressurized moon rover.... next step? equip it to the point the scientists inside never have to go out. Add manipulators that can do the same things. Better yet, send the pressurized rover first and forget the unsafe unpressurized versions. SO yes, Yeah Jaxa. The Phobos mission makes more sense than Mars too. I expect the two moons of Mars will be hot real estate in the future, more so than Mars.