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It will be interesting to see if this is a new force. I couldn't find any reference to theoretical predictions for the force, but GUT is undeveloped. I'd speculate they just found some secondary harmonics to known forces. And I base the previous statement on absolutely nothing.

Earth/Moon Holtzman Orbital Period * Population of Earth / Total Passenger capacity of all airliners? I guess its a somewhat intriguing number, if useless. I wonder if they should took in account population growth over the 3.7 years.

Just remember to sue her the next time you get a sunburn and for making your property dangerously hot in the summer. Don't forget to send her a cease and desist letter as well.

Space Station 13 is an interesting game if you want to worry about sucking vacuum on a station full of homicidal traitors, brain-sucking changelings, nuclear assaults, strange wizards and chest-bursting xenomorphs. Don't lose your emergency oxygen tank, because there won't be any left in the...

Its a ground collision bug. What happened is your ship transitioned away from its landed state to a flying state and collided with the ground, normally, depending upon the speed of the impact you would either switch back to the landed state or do a tiny bounce or slide. But because of time...

You can orbit 2 stars, its called a double free-return. And yes you can figure 8. The problem is these are not stable orbits and perturbations will eventually force you into a more stable orbit. Stable as in how the L4 and L5 are stable and if you're near enough to it you'll stay there...

Objects only appear to orbit a body's center of mass when you're far enough away relative to the body's mass distribution. But there is gravitational attraction between an object and a body is between each particle of each. This is why you can have cool things like using gravity gradients to...

The Sun can be north of you if you are either in the tropics or the artic/anarctic circles. Otherwise its just crazy high in the sky and you're getting confused/seeing an optical illusion. People's eyes are for scanning the countryside, not so much staring up at the sky. That's also why the...

You turn a nuclear reactor "off" when you lower the neutron levels below a self-sustaining level, usually this is by inserting cadmium rods which absorb enough neutrons.

If you know your orbital period (do you have a watch and can see stars?) and your semi-major axis (do you have some idea of the body's radius and your altitude? A ground radar and ability to measure angles make this easy) and your mass <<< what you're orbiting then you can make a good first...

What are you talking about? That's just more reaction mass!

No idea. He did all kinds of interstellar travel in the comic. In the movie he just has a fusion power source and some thin-mint sized whatever they are on his hands and feet.

It seems like they should park some tractor trailers or put up some big wind disruptor there to dampen that.

To be fair there is a big manipulator arm (Canadarm) on the shuttle that functions like a crane when in orbit. Not exactly the same thing, but parallel mission roles. I suppose you'd see a gravity dependent extending boom & winch more on a lunar or martian lander where ground handling might...

Generally people are talking about the DGIV or XR Series. There are also a few modules that allow any ship to be destroyed through rentry/crashing/aerodynamic stress/sudden acceleration. The most recent one I know of is Universal Breakup. There are some slight problems with the general...

Well it seems to me that a few "accidents" on DPRK submarines might need occur.

Ooh, its coming along nicely. Like others I have a small concern about the available payload mass, but keep going! Oh, kind of a minor thought. It would be very '50s to put an extending crane/davit above a cargo bay. There's nothing cooler than being able to winch your own cargo up and down...

Dunno. My sister loves spaceflight (even volunteers at Udvar Hazy,) but she's doesn't play video games aside from the occasional 4 player Mario Kart when visiting family. C'est la vie.

I've found there's not much benefit in going above 30m/s². Part of that is that you need your ship time to obtain the necessary altitude. Unless you are doing a 2 stage burn to get your apoapsis high, and a second to circularize. Also, you need to watch your drag while in atmosphere. There's...

That is perhaps the scariest sentence in modern spaceflight.