Universe Today Podcast

[Q&A+] How to Break Away from The Solar System?

17 min
Jun 17, 2026about 1 month ago
Listen to Episode
Summary

A Q&A episode addressing listener questions about space exploration, including NASA's role in observing interstellar object 3i Atlas, the escape velocity needed to leave the solar system, how future historians may misunderstand early space exploration, and sci-fi book recommendations. The host also previews upcoming astronomical events including a Venus occultation, total solar eclipse in Europe, and the Perseid meteor shower.

Insights
  • NASA functions as an infrastructure provider funding telescope development rather than directly controlling space observations; international collaboration among independent astronomers drives most scientific analysis
  • Escape velocity from Earth's orbit is only 12 km/s additional speed beyond Earth's orbital velocity, achievable through gravitational assists from gas giants rather than direct propulsion
  • Future historians will likely perceive rapid space exploration progress (1954-present) as instantaneous, while contemporary participants experience it as agonizingly slow and frustrating
  • Historical narratives about space exploration will be shaped by present-day competing narratives and misinformation, similar to current debates about COVID, vaccines, and climate change
  • Upcoming astronomical events in summer 2026 offer accessible viewing opportunities for northern hemisphere observers despite geographic constraints
Trends
International scientific collaboration transcends institutional boundaries with researchers from universities worldwide co-authoring papers on astronomical discoveriesSpace missions increasingly use multi-body gravitational assists to achieve escape trajectories rather than relying on direct propulsionHistorical revisionism and narrative shaping in real-time will complicate future understanding of space exploration's actual pace and challengesPublic perception of NASA's role in space science remains misaligned with its actual function as infrastructure provider versus direct operatorAstronomical observation capabilities distributed across ground-based and space-based telescopes enable rapid, redundant data collection on transient phenomena
Companies
NASA
Discussed as infrastructure funding organization for telescope development; clarified as not directly controlling spa...
James Webb Space Telescope
Space-based observatory used for 3i Atlas observations; funded by NASA but operated through international collaboration
Hubble Space Telescope
Space-based telescope mentioned as part of observational infrastructure for interstellar object analysis
Subaru Telescope
Ground-based observatory in Hawaii used for 3i Atlas observations as part of international collaboration
Keck Observatory
Ground-based telescope facility involved in 3i Atlas observations
Gemini Observatory
Ground-based telescope facility (Gemini North and South) used for interstellar object observations
ATLAS
International all-sky survey telescope collaboration that discovered interstellar object 3i Atlas
Vera Rubin Observatory
Ground-based telescope used for observations of interstellar object 3i Atlas
People
Frank Herbert
Science fiction author of Dune series; host discussing reading Children of Dune and praising original Dune novel
Quotes
"NASA is an infrastructure organization. They provide the tools that the astronomers use to analyze the things that they're seeing and they're very hands off about this."
Host~8:30
"You only need to put an additional 12 kilometers per second on top of the speed of the Earth for you to be able to launch on a trajectory that's going to carry you out of the solar system."
Host~15:00
"It all just happened in a blink of an eye. And I think from our perspective, as the people that are going through this living through the time, it feels agonizingly slow."
Host~28:00
"Dune, the best science fiction book ever written in my mind. It's the perfect book."
Host~38:00
"If you can't see the entire totality, I wouldn't bother trying to get any closer. So either get to see 100 percent or just stay where you live in Europe and watch the eclipse."
Host~45:00
Full Transcript
How will future historians see space exploration? Did NASA handle the 3i Atlas story well? How quickly do you really need to go to break free from the solar system? And in Q&A Plus, what are some sci-fi book recommendations? All this and more in this question show. It's time for the question show, your questions, my answers, as always wherever you are across my channel. If a question pops in your brains, write it down, I'll gather them up and I will answer them here. Alright, let's get into the questions. Madmillian, what is your opinion about NASA handled 3i Atlas? I don't really understand the premise of the question because NASA is an agency that funds the development of telescopes and does some science, but they actually sort of help the funding of other science. But in general, the kinds of science that was applicable for the interstellar object 3i Atlas was telescopes and observatories around the world. So we were reporting on what was happening with 3i Atlas. We were talking about what was coming out of the Subaru telescope in from Japan, although it's located in Hawaii, we were talking about the Keck Observatory, the Gemini North and South. We were talking about various space-based telescopes, James Webb, Hubble Space Telescope. And then if you go and look at one of the papers, say, analysis of 3i Atlas from the James Webb Space Telescope, it is going to be some team of astronomers located around the world that has like no affiliation with NASA. It might have an affiliation with NASA. They might have NASA astronomers on the team, but mostly it's going to be this person works at the University of Texas, this person works at the University of Shanghai, this person works at the University of Bonn and that they are collaborating together through the internet, through their working relationships because they're experts in different parts of this to produce a paper on interstellar object 3i Atlas. And during the height of the observations, we were seeing a couple of papers a week coming out, some of these couple of papers a day coming out from different astronomers around the world who were, had either gotten access and were able to take images of 3i Atlas with their telescope or were performing some kind of simulation based on their knowledge of the comments in general. And so NASA had very little role in what happened with 3i Atlas, right? It was discovered by Atlas, which is a international collaboration. It's a all-sky survey telescope has nothing to do with NASA. Then the following observations were done with the Vero Rubin telescope with, as I said, James Webb, Subaru, none of these have anything to do with NASA. Now they are, they can be partners and collaborators in various things. But NASA doesn't run them. So I think NASA did what it always did, which was that it 20 years ago funded and led the development of a telescope like James Webb or the Hubble Space Telescope that was one of the cast of characters that were used in the analysis of something that was interesting, that was happening out there in the cosmos. And like the tell, the easiest way to know that people, they've got this kind of shortened version and a distorted idea, really, of what NASA's role is. You know, like, you look at the Flat Earth, there's something like, never a straight answer, right? NASA, like it is like blaming your high school principle because you feel like there's things on the television that aren't correct, right? Some news thing is happening on the television. You're like, I don't think that's real because Mr. Gibson in grade eight was my principle, right? There is no connection. He has no relation and he is not responsible for the news that you think is not real. And it's possible that the news is real. So so why I'm kind of going to this diatribe is that is that it's like really important to understand that NASA is NASA is is an infrastructure organization. They provide the tools that the astronomers use to analyze the things that they're seeing and they're very hands off about this. They we built a telescope. Go ahead and use it. Tell us what you find. But it's yeah. So blaming the car manufacturer. I don't know how to come up with the good now, James, or somebody is going to going to do this as well. So yeah, noon, noon. How fast do you need to be going by the asteroid belt to leave the solar system? What you're talking about is the escape velocity of the solar system, that there is a speed that you can go where if you exceed that speed, then you are leaving the solar system and you are never coming back. And we have since five spacecraft on escape trajectories from the solar system, the pioneers, the voyagers and New Horizons. And what that meant is that they are going so fast that they are not able to then fall back in to the solar system. And the escape velocity of the solar system depends on your distance from the sun. Now the escape velocity from the sun is ludicrous. Like if you were sitting on the surface of the sun, it is hundreds of kilometers per second. Like you are not able to get that kind of velocity. But here at the Earth's orbit, it is only 42 kilometers per second. And the Earth is already orbiting the sun at 30 kilometers per second. You only need to put an additional 12 kilometers per second on top of the speed of the of the Earth for you to be able to launch on a trajectory that's going to carry you out of the solar system. That doesn't sound like a lot, but it is a lot. And it requires some tricks. Usually they'll use gravitational slingshots and assist. So they'll fly their spacecraft down into the gravity well of Jupiter, steal some of Jupiter's orbital momentum and use that to slingshot them out into space. And the voyages were able to use Jupiter and Saturn. And Voyager 2 was able to use Uranus and Neptune to be able to complete its gravitational assist. So the velocity is about, you know, from Earth, it's an additional 12 kilometers per second. And as you're flying away from the sun, you are going to be slowing down. That you're sort of imagining that you're flying away from the sun. And as long as you don't hit zero at an infinite distance, then you will escape the sun's gravity. And if you go a little bit faster than that, then you're off and you escape. You feel like a little less than that. Like, so you're only going 11 kilometers per second when you leave the Earth, then you will fly really far away, then you will fall back down into the sun. And so as you are moving through the asteroid belt, which is farther away from the Earth than the sun, you will be going some fraction of that 12 kilometers per second. As long as it's fast enough, like, I think it's like 27 kilometers per second. So with Earth, you need to be going 42 kilometers per second. And at the asteroid belt, you need to be going 27 kilometers per second. And I think like once you're out to Neptune, it's less for you to be able to pass through. And you're just going to be constantly slowing down. You just need to make sure that you don't hit zero at infinity. Oh, and you asked, how do you stop? That's a totally separate question. And and this is sort of this comes down to the flight paths that scientists consider engineers consider when they are developing missions. You know, we think about New Horizons, which NASA was able to send to Pluto took 10 years that they launched it to fly by of Jupiter. It picked up more velocity. It was able to make a fly by of Pluto. But it was not a slow fly by. You came in fast, took a bunch of pictures a couple of days before, took a bunch of pictures a couple of up to a couple of days after. And then it was back out in deep space again. And that's because they went fast. If you actually want to go into orbit, if you want to stop, then you've got to go in a totally different orbit that takes longer. You know, if you just want to do a fly by of Mars, you can get there faster. If you actually want to go into orbit around Mars, you have to take a trajectory that gets you to Mars so that then you can fire your rocket engines. You go into orbit around Mars. And that actually requires a longer journey because you're going slower. You're just going just fast enough to get to Mars, but not so fast that you fly right past. It's time to shadow our new patrons of the five dollar level and above. Anthony Papineau, Rupert Millard, Gareth Malkowski, Mika Rogers, Scotty, Douglas DeYonge, Lee Cummings, John W 1978, meaningless theories and Jerry. Join our community at Patreon.com, such universe today. Page Potter, what do you think future historians will misunderstand most about the people who first expanded humanity into space? I mean, when we think about history, the misunderstandings come fast and furious, you know, look at the arguments about Christopher Columbus, about the early explorers into the Americas, the early interactions between the West and the East when the first ships reached Japan and China and so on. When you think about the personalities of Rome or the Peloponnesian War, the kinds of things that we know like history is a very, has very bad memory. And it really takes archaeologists and historians a lot of very careful effort to put it all back together again. And so it may very well be that the documents and the records that we have today will stand the test of time for future generations and they'll be able to go and watch exactly all of the events unfold as they actually happened, which is what I think our default expectation is going to be. But the reality, of course, is that is that there are machines and you're living in this right now where there are people that are attempting to shape the narrative on the things that are happening right now. That there are people who disagree about covid, about vaccines, about climate change, about just so many things right now. And that's just happening in real time. Like imagine if you could look back at those controversies a hundred years from now, it's going to be a mess. So I think that the future, like just history in general, people looking back to the early days of space exploration, that they will probably think that it that it went very easy. Right. That they'll look it was 1954. And we saw a Sputnik then 61. We saw a Gagarin then 69. We saw the first people on the moon. Boom, boom, boom. Then we saw the space shuttle. Then we saw the space launch system. Then people returned to the moon. And here we are now on our way out to Alpha Centauri. It all just happened in a blink of an eye. And I think from our perspective, as the people that are going through this living through the time, it feels agonizingly slow. It just feels like it's taking forever for us to get on with the exploration of space. And I think that's pretty funny. And so when you think back, then you sort of apply that framework to the sorts of events that unfold it as people were living through World War Two, as people were living through the hundred thirty years war. Right. Just the grinding day after day after day of these momentous events. That's what I think is the misunderstanding is that people in the future will look back and go, wow, people must have just been shocked about how quick it all happened. And yet if you actually talked to us, we would be like, oh, it was so slow and so frustrating and so boring. I think that that would be a pretty big part. Jeff Hans, do you think future people look back on us with pity for only having natural vision and hearing for our entire lives? When you read Neuromancer, when you think about Cyberpunk 2077, you look at people are enhanced in all these different ways. You know, part of me is like, yuck. They like keep that bone saw away from me. But part of it was like, man, if I could swap out my eyes with something that would allow me to see farther across the electromagnetic spectrum, that would be super cool. And so will we have this future where these things are are provided inexpensively so that you can see across the electromagnetic spectrum hear distances, see with microscopic vision, telescopic vision. That would be pretty tempting. Yeah. Kim Beren, what books are people reading? The newest under Carla Carl is just out. But what else are you reading? So I would love to hear in the chat what you guys are reading. I'm reading right now Children of Dune, which is the third book in the Dune series. And it's crazy like Dune Messiah was. You know, Dune, the best science fiction book ever written in my mind. It's the perfect book. Dune Messiah, short, kind of weird. Children of Dune, longer, but also weird. And then from what I understand, the next three books just get even weirder. And I'm I'm going to read them because I feel like I owe Frank Herbert that energy for writing Dune. But I understand that I may not like them. And that's just going to be what I'll have to deal with. And I can't wait to read the new Dungeon and Crawl, or crawl I've I put myself on hold for the library for that book. And so as soon as it comes in, I will read it. But yeah, let us know what you're reading. All right, those were all the questions that we had this episode. Thank you, everyone, who asked your questions into the YouTube comments. Everybody who joined me for the live show, just a couple of live shows left before I go on hiatus over the summer. So we'll have the events here on the channel. But, you know, get them while they last. All right, I'm going to talk about some upcoming sky events that you should be keeping track of. But first, I'd like to thank our patrons. Thanks to Abe Kingsman, Andrea Pagretti, Brian Bode, a caravan, Chuck Hawkins, Grantor Bielock, Darkfinger, David Guilton, and David Mass. Thrall, the reading and math for toddlers, Eric Lindstrom, Evan Dotper, James Clark, Jeremy Madden, Jim Burke, Jordan Young, Marcel Smith, Mike Purcell, Nord Space, OnceIfRanimalist.org. We follow in mind if you have VBrick 6994, Raine Keite, Richard Williams, Sean Sargent, Stephen Frondland, the Team 49, Teleslips, Canada, Vlad Shepelin, Wolfgang Klutz and Zeldor Galactic Defender, who supports the master of the universe level and all our patrons. All your support means the universe to us. So I will be going on hiatus at the end of June. And there are some events that are going to be happening still in June. And then even more events that are going to be happening into July and August that you should be keeping an eye on. So first, the day that you are watching this will be the 16th or the 17th. And there is going to be an occultation of Venus by the moon. And this will be visible from people in the northern hemisphere in the Americas. So we've got an article on the universe today. I'll put a link down in the show notes. You can access the information about it until you've got like a little bit of warning and then you can actually watch the moon pass in front of Venus. Now, normally I would tell you about events that are happening right around the corner, but because I won't be around, I need to tell you now. And that is that there's going to be obviously a total solar eclipse that's going to be visible from Europe on August the 12th. And you know, total solar clips is totally completely mind blowing. If you've never seen when you absolutely should. This is going to be a tricky one because it goes through a piece of Iceland and then a little piece of Spain. And so you're going to have all the people who want to see a total solar eclipse concentrating into this very tight area. And if you can't see the entire totality, I wouldn't bother trying to get any closer. So either get to see 100 percent or just stay where you live in Europe and watch the eclipse and see 60 percent, 70 percent, 80 percent of the totality. So that's on August 12th. And again, we'll put a link down the show notes so you can find out when and where that's going to be happening. But it's going to be a tough one to to see just because it's in a small geographic area. And then the last event that I think is is going to be great is the Perseids meteor shower. And this is one of my favorites, just, you know, as a person who lives in the northern hemisphere, this is not the most busy meteor shower, but it is pretty good upwards of 100 meters an hour. And it all depends on whether or not you're going to get a lot of moon or no moon. And for this year on August the 12th, the night of the 12th, it's going to be pretty much close to a new moon. And so there will be no pesky moon that's going to destroy the Perseids meteor shower. And so my recommendation, like even start now, plan an event around it. Find a place that is as close as you can to get dark skies. Plan to meet there with your friends, bring lawn chairs, stay out overnight. Enjoy the incredible meteor shower. Fall asleep in the warm summer night. Obviously, the folks in the southern hemisphere, you have a better one. You have the Germanids. But for us in the north, the Perseids are the best that we've got. And the Perseids are August 12th, August 13th. So like at the same time that the solar eclipse is happening in Europe. All right. Good luck. We'll see you next time.