I’m 70 years old now days and live in deep poverty area in the southern Philippines. Thank you for playing your part in making the world a better place,you are so very kind natured and love to listen to you on the edge of my seat. God bless you young man 👍
When I visited Australia from the US we went to a dark sky location to see the milky way (MINDBLOWING), but I was pointing out Orion to my GF and suddenly realised it was upside down, really blew my mind realising that, finally converted me from a flat earther (only kidding) but just rocked my world seeing that, may not sound amazing but seeing it IRL and realising my position on the planet was giving me this new perspective really put things in, err, perspective.
Happy 25th, Fraser. I hope I'm able to find that same kind of spark for myself one day, and I'm so glad you did. My life without Universe Today would've taken a totally different course, and I'm convinced it would've been a worse course, because that's just the quality of content we're talking about here. Here's to many more 🎈📡🔭
Congratulations, and thank you for bringing the cosmos into focus for us all! Your dedication to this subject matter has made a huge contribution to my knowledge...and many many others I'm sure would attest the same thing! Seriously, thank you very much for what you do! You HAVE made a positive contribution to this world!! ❤❤
You are hilarious today Mr Universe. The equatorial crescent Moon will now always be a ‘The Balls of a horn’ moon. I spat my cuppa tea across the kitchen table and laughed so hard. Thank you, you made my day !
Hey Fraser! Thank you so much for the shout-out and for all that you do; Truly top tier science journalism. And Happy 25th Anniversary to Universe Today!
Your enthusiasm for astronomy is contagious! From discussing potential Moon moons to the practicalities of space travel, this episode was both informative and inspiring. Can't wait for the next one!
Thank you and your team for 25 years of journalism excellence. Your hard work and dedication to the high quality standards of both science and journalism has given you a reputation in both communities as a trusted and reliable source of contemporary science and space stories. Congratulations, and thank you.
Congratulations on your 25th anniversary of starting Universe Today. Today's episode is one of your very best for teaching us fundamental concepts. I learned so much. Thanks.😊
Risa was my fav this week. Congrats on 25 years Fraser. Having Universe Today remain relevant through all the changes in how people learn and consume information is a true feat.
10:48 when a white dwarf exceeds the chandrasekhar limit, shouldn't it collapse into a neutron star instead of exploding? 22:39 now why does that thing remind me of the eagles in space 1999? 36:11 also, don't forget that the universe was much smaller and therefore much denser than it is today. that's gotta have some kind of effect.
A type 1A white dwarf supernova has a carbon-oxygen core, not a dense iron core, so when it goes supernova its entire core is blown apart and does not undergo core collapse into a neutron star.
There it is... (at 25:42) right in the middle. (right where it belongs) 👉 it's a Plasmoid. 👈 and it's always "right in the middle." (of stars, galaxies, and perhaps even atoms)
Congratulations Fraser on your 25th anniversary! Wow, what an achievement! Fantastic! I began listening to you on the early iTunes podcast around 2002 I think. It’s when you did a weekly audio show with a lady astronomer and I remember I had over 200 episodes on my titanium Mac laptop- and I still have it on life support?!
When you were talking about what you can see in the southern hemisphere you left out the Great Southern Cross. The first time I saw it I was stationed on a US Guided Missile Frigate on our way to Australia. The size is amazing. I loved going out on the weather deck after midnight out at sea and watching the sky. Particularly in the Pacific Ocean, hundreds of miles from any land. On a clear calm night there is nothing like it❤❤❤
22:15 - any Mars cyclor would be artificially kept in the Earthy moon system longer than the single loop-back pass. This is because in order for a space station to be useful, it's gotta carry a lot of stuff. And so you stick it in an Earth-Moon figure 8 while you load it up for the Mars leg. Because there is no moon to orbit at Mars, everything gets dropped at once , and the station heads back to earth. I like the idea for freight, because it's very efficient. But it is also very slow, and so putting people on board would be a Bad Idea.
at 11:37 What if Halton Arp was right about what causes a redshift in light? (what if light is not analogous to sound) Has anyone made a map of the distribution of stars and galaxies, where redshift is a function of the age of an objest, rather than distance?
During the 2012 Tulum cruise, I remember you mentioning the moon being in a different orientation because we were so far south and I was like, "Uh, I guess? A little?" Then I realized you were speaking mainly to people who didn't already live around 30N and the difference was much more significant to you. XD
Omega Centauri can be seen from the northern hemisphere in May and June. I saw it from The San Luis Valley in southern Colorado around 38 degrees north. A dark unobstructed southern horizon (no clouds, trees, hills, mountains) is necessary.
One of the highlights of a trip to Buenos Aires for me was seeing Alpha Centauri for the first time. I didn't even realize at first I was looking at it, until I saw a bright star, and then saw Crux and realized where I was looking. Ironically enough a few months before that I'd gone to Hawaii for the first time and it was pretty cool to see so much of Scorpio.
The orientation of the crescent Moon changes even when you stay in the same place. There is a folk tale that drought is caused when the Moon "holds water," that is, looks like a bowl held horizontally. When the Moon bowl is tipped so the water can flow out, the rain will come.
Regarding Laniakea, we have a perfect reference frame - CMB. Our movement in relation to it is measured quite precisely. Without this correction, all measurements of the Hubble constant do not make sense.
Is there any chance you could snag Nobel laureate George Smoot for an interview, especially for his work on COBE? Your interviews are outstanding! Congrats on 25 years!
[33:10] One would think that, due to symmetry, the planets would (on average) be as high up in the sky at 49°N latitude as they would be at 49°S latitude. In fact, come this December, you'll find Jupiter pretty high up in your night sky - 60° altitude - not exactly "close to the horizon". That said, it is not terribly easy to find yourself at 49°S latitude - pretty far sound in Argentina or Chile or in the middle of a vast expanse of ocean. Anywhere you might reasonably be in the Southern Hemisphere would be closer to the equator than where you currently live and, so, yeah, the general "habitat" of the planets would be much better positioned for those crane-your-neck observations.
I heared from people like Dr. Becky that we don't really know how the supermassive black holes at the centres of galaxies formed. What's the deal with this? Could you talk about black hole formation for a bit?
Technically... Those photons don't (likely) expetience time, so they don't travel to you until they "know" they can be exchanged between their emmiters and your electron recievers. It's a quantum particle exchange, just as 2 electrons sitting right next to each other exchange photonic force carriers. So the telescopes are even more amazing, as they are either communicating with the past, or were destined at the beginning of time to arrange the exchange... Thus communicating with the future. Which is just one more reason Chandra x-ray should't be shut down!
Q&A question. How much weight do i lose due to centrifugal effects of earths rotation and orbit if i am located on the equater and what is the moon effect on my weight.? How much rotation speed does the earth have to spin in order for me to become weightless.
Space communications....several years ago I recall a new function of TCPIP protocol so that for each "hop" in a series of routers each router would buffer and could re-transmit a data packet without asking the source of the packet to re-transmit. This is a critical step to effective relays. Not sure if this has been implemented or not but like for Mars orbiters that we have today, I would expect the newer ones would be doing this already.
Hi Fraser In relation to 2:40 ish, you said something about photons from the CMBR having travelled to us through 13.8 billion years, without hitting anything in between. That's not necessarily accurate. Most elements will reflect a certain amount of light energy. They do this by absorbing incoming photons, which excites the surface molecules of that element/ compound and then later re-emitting those photons, causing the excited atoms to return to their standard state. The photons from the CMBR might have been absorbed and re-emitted once or more, perhaps even countless times, before reaching us. I don't think there's any reliable way of knowing a photons travel itinerary...
YEAH WE'RE GETTING OLD. But that's beautiful. Age is a bless. And about the moon... I grow up in Brazil and live in London 4 30 years n ALWAYS watch d moon n yeah it's upside down. I c a rabbit up or down. It's great isn't it?
I've heard that all of the hydrogen in the universe was formed during the big bang. What sort of energies would be needed to synthesize a proton? Have there been any papers or ideas on how this might theoretically be done?
QUESTIONS. The cosmic microwave background noise , If the observable universe is 13.8 illion light years away, and thwt there is expansion beyond this . Photon from the bigh bang cannot have been 13’ billion years ago so the question is WHY. Can we see it anyway if the big bank should have been further away than we can see . Are the CMB detections not detecting accurately?
1:31 Professor Francis Yu - "Gravity doesn't bend light" th-cam.com/video/Sj_CBJVvxJw/w-d-xo.html lecture by NASA laser optics engineer Edward Dowdy th-cam.com/video/1FQx7Y948mE/w-d-xo.html Edward Henry Dowdye Jr., Extinction Shift Principle: A Purely Classical Alternative to General and Special Relativity
There is a hard limit to the periodic table, and that is when the nucleus becomes massive enough that electrons would have to exceed the speed of light to remain "in orbit". We've got around 50 elements to go...
How do you explain neutron stars then? They can be described as large nuclei, the smaller ones even contain some protons and have electrons in their atmosphere
Congratulations for 25 years of great work. Here's to another 25!
I’m 70 years old now days and live in deep poverty area in the southern Philippines. Thank you for playing your part in making the world a better place,you are so very kind natured and love to listen to you on the edge of my seat. God bless you young man 👍
Awesome!
When I visited Australia from the US we went to a dark sky location to see the milky way (MINDBLOWING), but I was pointing out Orion to my GF and suddenly realised it was upside down, really blew my mind realising that, finally converted me from a flat earther (only kidding) but just rocked my world seeing that, may not sound amazing but seeing it IRL and realising my position on the planet was giving me this new perspective really put things in, err, perspective.
And your Upside-down to me is the only way I've ever seen it. Hope to be in the north one day to experience it the other way too.
Congratulations on doing what you do so well for 25 years. Good to go for another 25.
Happy 25th, Fraser. I hope I'm able to find that same kind of spark for myself one day, and I'm so glad you did. My life without Universe Today would've taken a totally different course, and I'm convinced it would've been a worse course, because that's just the quality of content we're talking about here. Here's to many more 🎈📡🔭
Congratulations on a quarter century Fraser & universe today team! You know the old saying "Bulls of a horn flock together!"
Congratulations for the 25 years of devotion. You're amazing.
Huge congrats on the anniversary Fraser. Universe Today is amazing - thanks to you and the entire team for the entertainment and learning I get here
Happy anniversary. 25 years is a long time. Thanks for all you do
Congratulations Fraser! You are doing a fantastic job. Please keep it coming. 👍
🎊🎉✨🎇🌛happy 25th Fras..🎆🧨⚡🌟⛅🌜⭐
Congratulations, and thank you for bringing the cosmos into focus for us all! Your dedication to this subject matter has made a huge contribution to my knowledge...and many many others I'm sure would attest the same thing! Seriously, thank you very much for what you do! You HAVE made a positive contribution to this world!! ❤❤
You are hilarious today Mr Universe.
The equatorial crescent Moon will now always be a ‘The Balls of a horn’ moon.
I spat my cuppa tea across the kitchen table and laughed so hard. Thank you, you made my day !
Hey Fraser! Thank you so much for the shout-out and for all that you do; Truly top tier science journalism. And Happy 25th Anniversary to Universe Today!
Thanks! And keep up the good work!
Your enthusiasm for astronomy is contagious! From discussing potential Moon moons to the practicalities of space travel, this episode was both informative and inspiring. Can't wait for the next one!
Thank you and your team for 25 years of journalism excellence. Your hard work and dedication to the high quality standards of both science and journalism has given you a reputation in both communities as a trusted and reliable source of contemporary science and space stories. Congratulations, and thank you.
Always love this channel.
Vendiker, 25 yrs of space journalism is amazing. Congratulations!
Cait. Congrats on 25 years, and thanks for sharing your story of following your passion. :)
Fantastic achievement! Thank you so much for your work🎉
Congrats for unveiling the universe to the masses for such a long time, since the last millennia. Keep going far into the future.
Happy anniversary! Universe today (and all you do) is a big part of why I love space. Here's to 25 more!
Congrats on 25 years!
Congrats Fraser you're incredible!!!!!!
Great episode again Fraser! Congratulations on 25 years UT!
Congratulations on your 25th anniversary of starting Universe Today.
Today's episode is one of your very best for teaching us fundamental concepts. I learned so much. Thanks.😊
Risa was my fav this week. Congrats on 25 years Fraser. Having Universe Today remain relevant through all the changes in how people learn and consume information is a true feat.
Congrats! My child is 25 years old... and so is yours
You’ve been a blessing in this world for 25 years
10:48 when a white dwarf exceeds the chandrasekhar limit, shouldn't it collapse into a neutron star instead of exploding?
22:39 now why does that thing remind me of the eagles in space 1999?
36:11 also, don't forget that the universe was much smaller and therefore much denser than it is today. that's gotta have some kind of effect.
A type 1A white dwarf supernova has a carbon-oxygen core, not a dense iron core, so when it goes supernova its entire core is blown apart and does not undergo core collapse into a neutron star.
Congrats Fraser
And thank you to you and your team for all that you do
0:32. Congrats!! I was 14 when you started. Glad you went this direction and stuck with it!
Gratz on 25 years Fraser! Love your work mate
Southern hemisphere stargazing is on my bucket list
Congrats with such a significant anniversary. That was great, we liked it
Congratulations, Fraser. Great job, thanks for all the excellent reporting.
Little late to saying this but congrats on 25 years. Your content is stellar glad I found you earlier this year.
Happy Anniversary. I like your channel.
Congrats on the 25th birthday Universe Today!
Congrats on 25 years! Going strong!
There it is... (at 25:42) right in the middle. (right where it belongs)
👉 it's a Plasmoid. 👈
and it's always "right in the middle." (of stars, galaxies, and perhaps even atoms)
YAY !!! So good. May the next 25 years bring us all more awesome news. ❤Keep on rocking and break for nobody. 😊
Congratulations Fraser on your 25th anniversary! Wow, what an achievement! Fantastic!
I began listening to you on the early iTunes podcast around 2002 I think. It’s when you did a weekly audio show with a lady astronomer and I remember I had over 200 episodes on my titanium Mac laptop- and I still have it on life support?!
Cait was the best question, cool to learn about your history and congratulations on 25 years since the website!
This was a great week! 👍🏾
Great videos. I am now a regular consumer :) you are so knowledgeable and yet so humble. Huge respect for you ! Keep up the good work.
Wow congratulations 🎉 I’ve been watching you for over 23 yrs
'Bulls of a horn' passed through my brain as an entirely normal phrase, and it's only when you corrected yourself that I realised 😂
When you were talking about what you can see in the southern hemisphere you left out the Great Southern Cross. The first time I saw it I was stationed on a US Guided Missile Frigate on our way to Australia. The size is amazing.
I loved going out on the weather deck after midnight out at sea and watching the sky. Particularly in the Pacific Ocean, hundreds of miles from any land. On a clear calm night there is nothing like it❤❤❤
Happy 25 years of Universe Today, Fraser! 🎉
Andoria. Great question and great answer.
From Ushaia, Argentina, I got to see the moon looking fully upside-down. I knew it would do that but it was still very weird to see.
ConGrats on 25 years!! Wow time fly's Fast and thank you for all your Great information.
Congratulations on a quarter century of excellence! Cheers mate!
Ansonia: really good question!
Great answer. Super detailed and thorough , as usual.
[Andoria] Best answer of the week.
22:15 - any Mars cyclor would be artificially kept in the Earthy moon system longer than the single loop-back pass. This is because in order for a space station to be useful, it's gotta carry a lot of stuff. And so you stick it in an Earth-Moon figure 8 while you load it up for the Mars leg. Because there is no moon to orbit at Mars, everything gets dropped at once , and the station heads back to earth.
I like the idea for freight, because it's very efficient. But it is also very slow, and so putting people on board would be a Bad Idea.
I've often wondered about moon moons myself 😅
Moon-Moon
at 11:37 What if Halton Arp was right about what causes a redshift in light? (what if light is not analogous to sound)
Has anyone made a map of the distribution of stars and galaxies, where redshift is a function of the age of an objest, rather than distance?
During the 2012 Tulum cruise, I remember you mentioning the moon being in a different orientation because we were so far south and I was like, "Uh, I guess? A little?" Then I realized you were speaking mainly to people who didn't already live around 30N and the difference was much more significant to you. XD
You should do an anniversary show with the most exciting events over the past 25 years
Omega Centauri can be seen from the northern hemisphere in May and June. I saw it from The San Luis Valley in southern Colorado around 38 degrees north. A dark unobstructed southern horizon (no clouds, trees, hills, mountains) is necessary.
One of the highlights of a trip to Buenos Aires for me was seeing Alpha Centauri for the first time. I didn't even realize at first I was looking at it, until I saw a bright star, and then saw Crux and realized where I was looking. Ironically enough a few months before that I'd gone to Hawaii for the first time and it was pretty cool to see so much of Scorpio.
Best videos on youtube by far.
The orientation of the crescent Moon changes even when you stay in the same place. There is a folk tale that drought is caused when the Moon "holds water," that is, looks like a bowl held horizontally. When the Moon bowl is tipped so the water can flow out, the rain will come.
Congrats on your 25 year anniversary!
Congrats! You're the best out there!!
Congrats on your anniversary!
Regarding Laniakea, we have a perfect reference frame - CMB. Our movement in relation to it is measured quite precisely. Without this correction, all measurements of the Hubble constant do not make sense.
Thank you for 25 years
at 23:54 Have you ever heard of the Structured Atom Model? (aka: SAM)
I'm a big fan of the Plonk-satellite!
Planck satellite gave us amazing Universe information. We need more science satellites and fewer bombs.
Congratulations on your sites Silver Jubilee!
Is there any chance you could snag Nobel laureate George Smoot for an interview, especially for his work on COBE? Your interviews are outstanding! Congrats on 25 years!
Thank you Fraser for answering our questions, from stupid laypeople, in an understandable manner. Your pedagogy is exceptional.
Another great TH-cam channel is Graviton Media.
thank you for your awesome show Frasier
Congratulations Frasier! Been listening to you since Astronomy Cast when the iPod mini first come out lol.
[33:10] One would think that, due to symmetry, the planets would (on average) be as high up in the sky at 49°N latitude as they would be at 49°S latitude. In fact, come this December, you'll find Jupiter pretty high up in your night sky - 60° altitude - not exactly "close to the horizon". That said, it is not terribly easy to find yourself at 49°S latitude - pretty far sound in Argentina or Chile or in the middle of a vast expanse of ocean. Anywhere you might reasonably be in the Southern Hemisphere would be closer to the equator than where you currently live and, so, yeah, the general "habitat" of the planets would be much better positioned for those crane-your-neck observations.
Congratulations Fraser! Here's to 25 more years👍
I heared from people like Dr. Becky that we don't really know how the supermassive black holes at the centres of galaxies formed. What's the deal with this? Could you talk about black hole formation for a bit?
I love the way my wife snores. It's so cute. Cute little snore. ❤️
Technically...
Those photons don't (likely) expetience time, so they don't travel to you until they "know" they can be exchanged between their emmiters and your electron recievers. It's a quantum particle exchange, just as 2 electrons sitting right next to each other exchange photonic force carriers. So the telescopes are even more amazing, as they are either communicating with the past, or were destined at the beginning of time to arrange the exchange... Thus communicating with the future.
Which is just one more reason Chandra x-ray should't be shut down!
Maybe they have a tiny bit of mass
@@sulljoh1 Yes perhaps could be, but they can't have much.
Q&A question. How much weight do i lose due to centrifugal effects of earths rotation and orbit if i am located on the equater and what is the moon effect on my weight.? How much rotation speed does the earth have to spin in order for me to become weightless.
Congrats on the amazing accomplishment
Space communications....several years ago I recall a new function of TCPIP protocol so that for each "hop" in a series of routers each router would buffer and could re-transmit a data packet without asking the source of the packet to re-transmit. This is a critical step to effective relays. Not sure if this has been implemented or not but like for Mars orbiters that we have today, I would expect the newer ones would be doing this already.
Aeturen. Never traveled to the other hemisphere, but never thought of it. Totally makes sense.
Cait! Thanks for sharing your astronomy origin story :)
Hi Fraser
In relation to 2:40 ish, you said something about photons from the CMBR having travelled to us through 13.8 billion years, without hitting anything in between.
That's not necessarily accurate. Most elements will reflect a certain amount of light energy. They do this by absorbing incoming photons, which excites the surface molecules of that element/ compound and then later re-emitting those photons, causing the excited atoms to return to their standard state.
The photons from the CMBR might have been absorbed and re-emitted once or more, perhaps even countless times, before reaching us. I don't think there's any reliable way of knowing a photons travel itinerary...
44:01 I just went on his channel and saw that i had actually seen one of his videos recently.
YEAH WE'RE GETTING OLD. But that's beautiful. Age is a bless.
And about the moon...
I grow up in Brazil and live in London 4 30 years n ALWAYS watch d moon n yeah it's upside down. I c a rabbit up or down. It's great isn't it?
Congrats on the 25th anniversary!
Aeturen
One can never have too many flat-earth counter arguments.
I've heard that all of the hydrogen in the universe was formed during the big bang. What sort of energies would be needed to synthesize a proton? Have there been any papers or ideas on how this might theoretically be done?
Vendikar
The StarTrek documentary series shows just how we drop subspace beacons all over the place for this purpose.
25 years??? Wow congratulations!!
QUESTIONS. The cosmic microwave background noise , If the observable universe is 13.8 illion light years away, and thwt there is expansion beyond this . Photon from the bigh bang cannot have been 13’ billion years ago so the question is WHY. Can we see it anyway if the big bank should have been further away than we can see . Are the CMB detections not detecting accurately?
The big bang happened everywhere and the CMB light is still travelling in all directions and so we will continue to see it in the far future.
1:31 Professor Francis Yu - "Gravity doesn't bend light" th-cam.com/video/Sj_CBJVvxJw/w-d-xo.html
lecture by NASA laser optics engineer Edward Dowdy th-cam.com/video/1FQx7Y948mE/w-d-xo.html
Edward Henry Dowdye Jr., Extinction Shift Principle: A Purely Classical Alternative to General and Special Relativity
There is a hard limit to the periodic table, and that is when the nucleus becomes massive enough that electrons would have to exceed the speed of light to remain "in orbit". We've got around 50 elements to go...
How do you explain neutron stars then? They can be described as large nuclei, the smaller ones even contain some protons and have electrons in their atmosphere
@@EnkaptatonThe electrons you refer to in a neutron star are not in atomic orbits, and the neutrons do not form a single nucleus.
The ultimate elemental manufacturer is a black hole. Under the severe bending of space time we dont know what new physical processes are under way.
Wow the show is the same age as me. Well done Fraser ❤
Question. How does a higher metallicity prevent a forming star from accreting more mass?