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Let’s say a ball 10 meters in diameter with an indestructible 5 m diameter core, was to hit the earth at 15,000,000,000,000,000 times the speed of light, somehow, right on the empire state building. I think there would be a very loud bang, a column of smoke, and a very big crater where new york used to be. and a lot of very hot plasma where there used to be breathable air, but i did no research for that answer, I was wondering what you think?

After a few days After The first Atlantis Launch They Had the second time they had a crew To Test The Newly Made robotic arm It is Told That It Is Hard to find and Build In a few hours They will return for a runway landing The Last flight til now Was Unmanned and Landed Near By the KSC And Tried to Land at the Runway But didn`t have enough runway space for a landing The Next Part will be in a few hours

I recently saw this picture And this lead me to the realization that Kerbol is an Ultra-cool Red dwarf star smaller than Trappist-1 (which means that its a Class-T Star.) and can you even see kerbin and the mun?

As the name implies, I am wondering what are the most efficient gravity turns for Earth and Mars? I don't know if RSS and Real Life gravity turns are the same, but I am wanting real life and not RSS, unless, of course, they are the same. Lastly, how do I calculate Delta-V?

It should be doable to create an online launcher performance calculator using Orbiter analogous to Dr. John Shilling's calculator: Launch Vehicle Performance Calculator. http://silverbirdastronautics.com/LVperform.html It should have an GUI where you could just plug in the specifications of your rocket and get a reasonably accurate estimate of the payload to Earth orbit, without having to be familiar with Kerbal programming. Bob Clark

In the vein of "beat Sputnik" and "1900s Space Race"... We all know it is much easier to get to orbit from Kerbin than it is from Earth. Kerbin has roughly the same surface gravity as Earth, but is apparently far denser and thus less massive, so the escape velocity is a lot lower. But is there any way you could get a planet or planetary system even more conducive to early space access than Kerbin? Rules: The planet has to be habitable by humans: comparable surface gravity, comparable atmospheric pressure and temperature at the typical habitation regions, comparable oxygen partial pressure. It also has to have at least a moderate chance of forming naturally; no Kardeshev-II alien geoengineering. No weird physics, either. What are the options? Perhaps you could have a world with less habitable surface space, but a higher rotation rate and bulge, so launching from the equator (even if the equator isn't as temperate as ours) gives you a nice boost. Maybe the atmosphere could be made of a collection of gases which are still okay for humans, but work better for an airbreathing engine. Perhaps you have a very low tidally locked moon with a strong common magnetic field, allowing transient magnetic gradients which can be ridden into orbit. Ideas?

https://www.youtube.com/watch?v=At0w3pnIVgc It's all the major moons and planets of our Solar System in scale to one another. For KSP reference, Kerbin is about the size of Eris (give or take a itty bitty bit).

Nothing to say really, just wanted to share with you this beautiful Earthrise seen on October 12 by LRO. www.nasa.gov/image-feature/goddard/lro-earthrise-2015