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Orbiter on Mac Welcome! I use Orbiter in two ways on my 2012 MacBook Pro: on a BootCamp partition running Windows 8, and on Parallels Desktop version 8 running Windows XP. It's inconvenient booting into the BootCamp partition, but performance is fantastic. Parallels v8 provides sufficient...

Wait, you recall the Cambrian? Just how old ARE you?

[spoiler alert] At least there were no aliens. Overall I enjoyed it. Execution was fantastic (3D wasn't overdone), excusing the technicalities that only people like us care about.

It's not only math - it's knowledge of any kind. David Deutsch, in "The Beginning of Infinity" points out that "Problems are inevitable" and "Problems are soluble", and that every solution to a problem expands the boundary of knowledge. But the boundary consists of problems. It's an...

Disclaimer: This is not meant to start an OS religion debate. I've been running Orbiter on my MacBook Pro (mid-2012 version) under Windows XP (soon to upgrade to Windows 7) on a Boot Camp partition. Let me know if you want more details.

Wait ... you don't hear the music?

I understand the 'physical' reasons they can't de-orbit GALEX. I'm disappointed in the 'policy' reasons. Over the next 65 years or so, it will gradually sweep through every altitude from 600km to the atmosphere. There are a lot of objects in orbit in that range, all potential collisions. GALEX...

I'm disappointed that NASA won't be de-orbiting the satellite. It's in a 697km circular orbit, inclination 29 degrees. What are the odds of it surviving the next 65 years intact?

Hot jets, good luck, and a safe landing! :thumbup: (I know the message is redundant with my sig, but it's never been more appropriate!)

Just because we've reached the grumpy age doesn't mean music and popular culture aren't really worse.

Would methane be liquified and/or compressed? Wouldn't that require a pretty strong (and weighty) tank? Would there be boil-off (if liquid) or pressure-relief? What sort of losses would occur over a several-month trip to Mars? So many questions for the engineers among us . . .

I can't imagine. Since my own collarbone break 3 years ago, I never go out if the roads are damp or the sun is down, and seldom below 10°C. I'm really happy to hear of your recovery and determination.

That's great, dgatsoulis! Thank you! I recommend viewing with the Orbit MFD, showing Earth as target so you can clearly see where the close approach is. It's pretty neat to see the inclination change rapidly just after close approach, and the other elements change, though not so drastically. I...

Just curious, Tex, how common are cameras on the other bikes?

I hope someone is making a scenario for Orbiter, to show the close pass and how it affects the orbit. (My first try didn't come close.)

Dr_Thomas Count me in as one who would love to have the Firefly add-ons.

There is no one like you. There is no one like me, either. We're all unique. Isn't it great?! I didn't have any trouble understanding you. Your English is a little unusual, but most of the people who use Orbiter are used to working hard to understand something, and also willing to help others...

Over at slashdot.com someone has asked about games that can teach rocket science. Maybe a few thoughtful comments could lead a few slashdotters to orbiter. The thread is at: http://games.slashdot.org/story/12/12/12/2216215/learning-rocket-science-with-video-games

I'm willing to help with the documentation. It's the least I can do to repay you for the great enhancements that you've made to Orbiter. Just tell me how to get the doc source.

Why is there a "kink" in the Pressurized Mating Adapters (PMA) of the ISS? I would think a straight tunnel would be easier to use. Just curious