SSTO is almost impossible for the same reason that a fully reusable two stage rocket is almost impossible in 110% gravity.

How does this video not have 10x the views???

Fraser Cain pointed me your way. You'll break 10K soon. Patients my son 🖖

Just discovered your channel and I can't describe how great I found it to be for me. The content is detailed enough and has no bullshit stock picture slideshows. Thank you. Hope more viewers come.

It would be fascinating to hear you explain the Interplanetary transport highway (en.wikipedia.org/wiki/Interplanetary_Transport_Network), I understand it takes advantage of unstable Lagrange points to reach the desired orbit with the use of little fuel, but I still am mystified by it.

I love those micro channels with overall high quality content. Some advice: Fix you intro, Get an air noise filter to remove your background cat noises, Text on screen needs to be bigger, and make a lot more money 😉💰

Your channel is top tier content. Really grateful to get these concepts laid out concisely and clearly, with a little dry humor as well.

What is missing from that presentation is the significance of the specific classes of orbit, like transfer orbit and why you need to make orbit correction in a specific position in space (related to the near celestial body), a fine example is the Oberth maneuver (which is absolutely necessary in the interplanetary insertion when you use chemical propulsion), in fact without it martian injection from the LEO would require a lot more deltaV than in your example, but the caveat is that you need to achieve that final velocity at a minimum distance from the earth.

Thanks for this amazing content. I learned more from this video than dozens from way more popular channels. Keep em coming

You could do orbital refueling of Starship at Mars, too. So 200 tons from Mars to Earth is doable.

This was an awesome video.

That's a great video, thank you for making and posting this!

JUMP SCARE at 15:51!

I think you can aero-break on the sun in order to "land", so the deltaV requirement won't be that high.

Awesome Content! ❤❤

0:35 Help Im already halfway there and have limited internet. Your video was the first to pop up. I think I took the wrong gravity assist past Jupiter.

A LOX/RP1 powered vehicle provides a little more than double the total impulse for equivalent propellant volume, as compared to LOX/LH2. You cannot get a SSTO into orbit in a practical manner using metal propellant tanks and/or LH2 fueled engines. The volume of LH2 required is too great for the total impulse provided and the thrust-to-weight ratio (TWR) of LH2 engines (75:1) is too low. Practical SSTOs require 150:1+ TWR staged combustion engines (high Isp than a GG cycle) and CFRP propellant tanks containing densified propellants with LOX/RP1 (1,124kg/m^3) or similar density impulse and Isp. Densified LOX/LC3H8 or LOX/LCH4 also provide more payload performance than LOX/LH2 for a given propellant volume. For a 10km/s dV, which is what a SSTO requires, LOX/RP1 has a 2:1+ tank volume and weight advantage over LOX/LH2 (395kg/m^3), despite the much higher Isp of LOX/LH2. It's counter-intuitive, but dense propellants and high TWR engines, allow you to devote more mass to the propellant tanks and useful payload. About 10 years ago, NASA had three contractors build different CFRP (IM7 fiber) LH2 propellant tank designs which were about 40% lighter than Al-2195 and passed pressurization and load testing, built for less total cost than Al-2195 tanks of equivalent volume (634m^3 for their test articles). Internal pressurization is the greatest load. For LOX or RP1 (22psi) it's about half that required by LH2 (45psi) to feed the engines. Acceleration loads, even with a much denser propellant combo, are not as problematic as high pressurization.

I just found the most creative and inspiring space related youtube channel. very good and engaging content

30:10 Lunar Starship has entered the chat as it retro burns into LEO

Can u make an update on starship development and how far they got and the changes they done to make starship better

Cars are also kinda based on delta V, if you for whatever reason don't need to accelerate, you can cruise forever. The amount of car delta V you need to go a specific distance depends on your drag. It's why your city mileage is much worse, you need more delta V to go the same distance in the city.

how can you aerobrake between moon transfer, moon GTO and LEO? there is no atmosphere.

Can you do one on nuclear engines.

Your channel and content are amazing. Among my favorite stuff here. Really great. Thank you so much. But I'm begging you, please buy a $100 microphone and put it nearish your mouth.