Why Spacecraft Are Using These Crazy Routes To The Moon - Weak Stability and Ballistic Capture.
For decades spacecraft would fly direct to the moon and then brake into lunar orbit, but these days most spacecraft take long circuitous routes, dancing on the edge of stability near the lagrange points of the sun-earth-moon system. These techniques save propellent at the expense of time and navigation complexity. They use the theory of weak stability boundaries and ballistic capture in the 3 body problem, to make this possible, and it's an idea which was first discovered in the early 1990's and has now become the main route for modern spacecraft.
We finish assembling the Moho mission vehicle on the Olympus station, then we find out we have other technical issues.
Kerbal Space Program is an indie game developed by SQUAD
http://kerbalspaceprogram.com
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https://www.youtube.com/watch?v=LOFzBNXowGo
I've already landed on the Mun using only the cockpit view, but in v0.18 a new crew pod was introduced, designed specifically for landers. However, this stripped down model lacks a coupe of useful instruments. Nevertheless I set off to show that even without knowing speed and altitude for most of the trip that it was possible to navigate to other worlds by hand.
The .craft file is now available here!
http://kerbalspaceport.com/iva-lander/
Unedited video is here:
https://youtu.be/1dhWBVF-7Sc
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https://www.youtube.com/watch?v=p0c-gx03DpM
A collaboration where I have to tell Skye what to do without seeing what she's doing and we try to build a rocket.
Edited from a larger live stream on twitch.tv/szyzyg
Full live stream here : https://www.youtube.com/watch?v=zjJmXNQ9joo
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https://www.youtube.com/watch?v=xQkhrROPnNQ
The first of my Deep Space Updates for 2023 - The final launches of 2022, where China proved that it can just about keep up with SpaceX if you count the entire nation's rocket fleet and ignore metrics such as 'total mass to orbit'.
There were a few other news stories, but the holiday season has slowed the usual reports of big events and I decided to talk about what we can expect in 2023.... but my camera battery was running out :)
Follow me on Twitter for more updates:
https://twitter.com/DJSnM
I have a discord server where I regularly turn up:
https://discord.gg/zStmKbM
If you really like what I do you can support me directly through Patreon
https://www.patreon.com/scottmanley
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https://www.youtube.com/watch?v=bQ98aIYrJAE
Kerbal Space Program 1.1.3 reintroduces the long lost magic boulder as a rare type of asteroid, but it's just a regular asteroid and it's not in a polar orbit of Ike. I set out to fix this issue.
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https://www.youtube.com/watch?v=hR738Xa2-Sg
The Parker Solar Probe is dipping towards the sun, less than 10 million kilometers from it, closer than anything else built by humans. And this week they announced that the scientific data coming back shows that the spacecraft 'touched the sun'.
That's actually a pretty good metaphor to describe the transition from the region of the solar system where the solar wind flows freely into a region where the solar magnetic fields dominate the plasma's motion in the solar Corona.
So let's try and explain the visible layers of the sun and why they appear different and distinct to each other.
Follow me on Twitter for more updates:
https://twitter.com/DJSnM
I have a discord server where I regularly turn up:
https://discord.gg/zStmKbM
If you really like what I do you can support me directly through Patreon
https://www.patreon.com/scottmanley
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https://www.youtube.com/watch?v=qS5Z9FdKeso
The first real mission following the tutorial, an operation to recover a power core needed to make the Avenger fully functional again. We're up against the clock in this mission, with the device unstable and potentially explosive we need to move quickly to secure the area and safe the device.
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https://www.youtube.com/watch?v=X7N8sBx-zSI
During the Space Shuttle program there were always people trying to anticipate every problem in advance and plan for them. Some situations would require emergency EVAs by astronauts to stow hardware or close doors. These were referred to as 'contingency EVAs' and a few of them required ideas that seemed a bit crazy, but were in fact the results to finding the safest way to bring the crew and vehicle home safely.
Be sure to check out Wayne Hale's blog for more great shuttle stories.
https://waynehale.wordpress.com/
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https://www.youtube.com/watch?v=qOb5tdtHIG4