Kerbal Space Program (KSP) is a spacecraft simulation game for Mac, Linux or Windows. Players build, launch, and pilot spacecraft and airplanes through a fictional 8 planet star system.

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Missing buttons, options and astronauts in Kerbal Space Program

Recently, Kerbal Space Program had an update. Since that update, several buttons and options are not visible anymore. For example, the in-game settings are not shown: And at the vehicle assembly, ...
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KSP - Mechjeb Ascend Guidance not doing it right

I'm trying to orbit Kerbin at 100km with 90º of orbit inclination using mechjeb ascend guidance but mechjeb is not making vessel orbit correctly. The orbit is like 5º offset and the apoapsis and ...
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1answer
72 views

Where do Kerbal Space Program add-ons have to be placed (with the Steam version)?

I use the Steam version of Kerbal Space Program and I don't know where add-ons have to be installed. The answer may be easy to find but this question hasn't be asked here yet.
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1answer
59 views

How prevent orbit change while using RCS to point probe anti-radial all time

How can I prevent orbit changes, while using RCS to keep my probe always pointing down? I'm using the probe with Remote Tech 2, and I want the probe always pointing down to be more realistic, but if ...
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Will my parachute fail if I'm going too fast when I deploy it?

I was going to put a whole back-story for this question here, but thought it'd be better as a Google+ post instead, for reasons that should be obvious to anyone who reads it. So, during high velocity ...
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4answers
3k views

How can I make money in the new career mode?

I know, there are tons of people and questions about the new career mode, mostly the tight money system. Most of these posts are answered with "Farm the 'test x while landed on Kerbin' missions, ???, ...
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736 views

I can't perform science experiments but retrieving space crafts

I have gone into space and went EVA and right clicked on my kerbal, nothing appeared. (I am in science mode) I can't use the mystery goo container or science jr. I am on a mac and using 1.0.4.
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1answer
613 views

Is it possible to exhaust all ore on a planet or moon?

A while back I managed to land on a class D asteroid, and divert its orbit to Kerbin's. There I used it to supply my orbital refueling station. After a while though, I received a message stating ...
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293 views

A way to practice certain stages?

I'm wondering if there is a way of practicing different stages of a flight. I am currently trying to land on the Mun and after some hours i just made my first semi successful attempt at it. But most ...
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1answer
91 views

What are the minimum altitudes for each warp level?

The higher warp factors have a minimum altitude requirement. What is the lowest altitude at which each warp is allowed?
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1answer
57 views

How can I find the way back to the runway? [duplicate]

Kerbal Space Program doesn't seem to have an option to plant flags in EVA anymore. How can I find my way back to the runway I launched a Space Plane from without using a mod?
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252 views

How many science points can be obtained through experiments in the whole solar system?

When you perform every single experiment in every single biome of every single celestial body in every possible situation until their return values are zero, how many science points will you gain in ...
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1answer
147 views

Docking Port Bug

I've been working on a space station and, upon sending up the final module and getting it in place I realized I neglected to send up the "hallways" that connect them (the modules) to the core. I ...
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1answer
69 views

Can not extend Antennae after data transmission

In my current version of the game (1.05) if I have a Communotron 88-88 extended and use it to transmit data, it will automatically retract and thenceforth be unable to be re-extended since the ...
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1answer
959 views

Do Kerbal Contracts recur?

In Kerbal Space Program 0.24 the new contract system has been introduced. Do contracts recur, that is, if I do a mission once, will it come up again? I don't want to be repetitive doing the same ...
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3answers
315 views

How to design heavy lifter rocket

I'm building a space station that will make a trip to Jool, collect science from its moons and return. Here is my reusable science module (2600kg): I tested my Laythe lander in Kerbin. The lander ...
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4answers
13k views

How would one undo loading a quicksave in Kerbal Space Program?

I just reverted to a quicksave in KSP, but I had forgotten that I had not actually made a quicksave during this mission (or in the last few missions), and thus hours of work were deleted. Is there ...
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2answers
258 views

Does deltaV have a limit using only stock parts?

The problem: I am trying to go to as much of the Kerbal system as possible, with the technology and base facilities that most people (including myself) used to get to the mun. (Why? We go to the ...
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7k views

Can I salvage my KSP career with a single launch

My KSP career has stagnated. I can't get enough income from contracts to cover my launch costs. My per launch costs to LKO and back are 20-30k depending on payload size. Is there any way to get income ...
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2answers
200 views

Why are parachutes so useless?

It seems that in one of the last few version the physics have been tweaked to make re-entry and landing much more dangerous. In particular, parachutes now (1.0.5) seem absolutely useless. I've been ...
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5answers
21k views

Can I transfer my saved game between platforms?

I've been playing KSP on a Mac, but I'd like to transfer all my save data over to a Windows PC. Is this possible? If so, where are the files and what do I need to transfer?
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3answers
647 views

What's more fuel efficient, orbit or slingshot?

I didn't test it because I just had that idea. Normally, I (maybe everyone?) would send the ship to orbit Kerbin and then plan the trajectory to the final destination. Making the spaceship to orbit ...
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1answer
74 views

Kerbal Space Program, how do you disable autosave?

Yesterday I was in the middle of a space shuttle orbit mission when something urgent came up that forced me to leave my computer. I exited the game, Kerbal Space Program. Today I come back and find ...
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5k views

How can I deal with the “floppiness” of tall rockets?

I just tried to build a rather tall rocket which also uses several Quad-Couplers to add more engines, and as you can see in the screenshot below this thing is rather floppy and unstable: It also ...
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1answer
112 views

Why did Jebediah survive after jumping out of a plumeting rocket?

A weird thing happened this morning, I suspect it was a bug, but I'm wondering if this has happened to anyone else. Jebediah was coming in for reentry to Kerbin when he deployed the parachute too ...
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120 views

Why I ever should use a Kerbodyne S3-14400 Tank?

The Kerbodyne S3-14400 fuel tank's statistic is just the double in anything I'm considering so far of the Kerbodyne S3-7200 Tank. It costs twice as much money, is twice as high, contains twice as much ...
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2answers
97 views

How can I tell if my parachute will work?

In a recent (relatively, stopped playing for a while) update of KSP, drag is much more of an issue now. Prior to this update, the staging icon (the orange icon to the left of the screen while in ...
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1answer
61 views

Why does short pressing the left shift key switch the view mode in addition to increasing the throttle?

When flying a spaceship if I press left shift briefly and let go immediately it beeps1 and switches the view mode2 in addition increasing the throttle. If I long press it it just increases the ...
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1answer
503 views

Sane career mode lowest tech levels

I am requesting guidance on the sane limitations of technology in Career mode. I've been beating my head into a brick wall with the game, and I'd appreciate knowing if it's my incompetence or I'm ...
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2answers
60 views

How to make a dockingport not detatch it self?

Actually I'm experimenting with dockingports because before I sent a spacecraft into orbit which later should be dockable, I'm experimenting I got it correct how the ports are working. Fortunately I ...
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2answers
281 views

Can I move my Kerbals inside a pod?

How can I move my Kerbals inside the Lander-can, Hitchhiker, or Command pod? If it isn't possible by default, is there a mod allowing me to do that?
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2answers
2k views

Getting to Gilly and back

Been trying to get to Gilly (in career mode) to get more science but I can't seem to ever have enough fuel to get back. I don't know if it's because I have too much weight or not enough fuel but no ...
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1answer
246 views

Is there any way to reduce repeated science experiments?

There are many science experiments in the game that only give you part of the (remaining) value whenever you carry them out and retrieve the data. So, even if you rerun the experiment, you only get ...
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1answer
81 views

Why is my parachute deploying without input

I have build a simple rocket to bring 2 tourists into space. The final stage consists of, a a MK1 Command Pod, a MK1 Crew Cabine, a small heat shield, and an MK16 Parachute. After flying a few minutes ...
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1answer
97 views

Any way to edit game files to revert a flight in KSP?

I was showing my friend what Kerbal Space Program was all about, and I wanted to launch a quick mission to the Mun and land so I could EVA just to show him the massive scale of the game. When I got to ...
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1answer
2k views

How does the temperature overlay work?

I've read about the temperature overlay in Kerbal Space Program here. And I've seen it, but how does it work? When I turned it on f11, everything was red, which seems bad. I've seen the temperature ...
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Why all of a sudden my KsP Launcher Stoped loading

When I fire up KSP, the launcher will say "Looking for updates" rather than play or options, and the background will be a big red question mark rather than the Kerbal X Space craft. It worked just ...
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13k views

Easy money in Kerbal Space Program

Ships cost money now a days, but I'm unwilling to make any changes to construction style (TWR >5 all the way!). I've had some trouble making fat stacks of ker-cash. What is the easiest way to make ...
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How can I change focus without firing up the throttle?

I can use tab to change between foci, e.g. if my focus is Kerbin and I hit tab, focus shifts to the Mun. However to go back without cycling through every celestial object requires pressing shift +tab, ...
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1answer
3k views

How do I calculate necessary Delta-V for circularization burn?

I'm trying to write a launch into orbit program. I could use wait until periapsis > x, but this seems inaccurate, because I can't start the burn at the exactly right time, because I don't know how ...
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1answer
70 views

Half of my training missions are missing

After not playing for a while I re-launched KSP and went back to refresh my skills with the training missions - however I only have the more advanced missions available - how do I reset or re-acquire ...
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1answer
323 views

The game pauses but the menu doesn't appear?

Usually, when you hit escape during a mission, the game pauses and the menu pops up. I've just come back to playing KSP after about a year long break, and I'm encountering a bug that is pretty much ...
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1answer
152 views

In this Kerbal Space Program tutorial, why does the commentator put the Stayputnik module on top of the crew capsule?

I have been watching Scott Manley's KSP tutorials, specifically this one here. He intentionally strands a Kerbal in orbit, then shows how to build a "rescue rocket", but doesn't go very in depth on ...
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3answers
1k views

Flight path for SSTO

Is there an optimal altitude profile for an SSTO spaceplane? I'm guessing it might depend on the mass and lift profiles, but I'm looking for a general outline, if possible. By altitude profile, I'm ...
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2answers
410 views

New Surface Outpost Contract - add on to an existing base?

So I currently have a surface outpost on both Mun and Minmus, but I've now received two more contracts to do the same thing -- one outpost on each moon. Instead of creating a whole new outpost, is it ...
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2answers
1k views

My Mun encounter trajectory intersects the Mun. Is this optimal?

My encounter trajectory is pictured below. From a fuel-efficiency standpoint, is it optimal for my encounter burn to intersect the Mun, then perform another burn to curve my periapsis out to a ...
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1answer
419 views

Can I play Kerbal without Steam?

Kerbal Space Program looks like a game I'd enjoy. There is a free demo available. I noticed the purchase link lists "Buy Steam Key". I have had one experience with Steam, and that was enough. Do I ...
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1answer
3k views

How to produce an EVA report

I'm in carreer mode, I've finally managed to reach the orbit, I see the EVA button, but when I'm outside the only thing I can do is to climb the ladder up and down and eventually get lost in space :) ...
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1answer
4k views

My ship is exploding on entry, what do I do?

My ship consists of a pod with a parachute on top and a science lab at the bottom. Now with the new update for KSP, my ship burns and my parachute gets destroyed when entering Kerbin. How do I stop my ...
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161 views

Kerbal Space Program Unmanned modules

How can I fly an unmanned module? It shows SPU:no connection when I right click on it. I have tried adding batteries, comms dts m1 on it but no luck.