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13 posts tagged with orbit. (View popular tags)
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Is it possible for humankind to divert Earth off its orbit around Sun?

I know it is a funny thought but I am curious. For instance, the mega-quakes can speed up or slow down self-rotation of Earth, albeit minutely. So in a similar vein would it be possible for a group of wacko scientists to get Earth off its orbit around the Sun to freezing cold in outer space by means of technology and materials? Can this idea be proved to be possible or not? Or maybe it was discussed earlier somewhere on Intertubes and you can help me find it.
posted by raphael19 on Aug 7, 2013 - 12 answers

Cut the big blue marble in half...

What would happen to the earth's rotation, orbit, etc. if the planet were half as large, diameter-wise, as it is now? [more inside]
posted by drlith on May 23, 2012 - 11 answers

What would happen if large-scale lunar mining operations became commonplace?

Could mining the moon destroy the oceans? [more inside]
posted by asnider on Feb 27, 2012 - 12 answers

Daylight moon.

Is it possible for a moon to have an orbit such that it is only ever visible from its planet during daylight hours? If so, what are the necessary requirements for this to happen?
posted by curious nu on Aug 20, 2011 - 14 answers

I need the bizarro Martian version of Galileo.

Martian Astronomer Filter--when Mars moves like this in the sky from our point of view on Earth, how does the Earth appear to move from Mars' perspective? [more inside]
posted by JMB1138 on Feb 24, 2011 - 3 answers

One luminary clock

Help me understand the phases of the moon. Why is it that a New Moon is visible at all? [more inside]
posted by doubtless on May 22, 2010 - 16 answers

How do they figure out where the asteroids are going?

How much information is needed to calculate the orbit of, say, an asteroid or a comet? Is it a simple, automated process? [more inside]
posted by Jimbob on May 3, 2010 - 13 answers

Is there a perfect orbit?

Is there a distance at which a satellite will orbit a body indefinitely? Is this distance a universal constant? [more inside]
posted by doublehappy on Oct 16, 2009 - 28 answers

Solar power in space?

Would orbiting solar power farms be remotely practical? [more inside]
posted by greytape on Apr 16, 2009 - 10 answers

realtime satellite orbit data?

I vaguely recall seeing some kind of online/download that tracked in near realtime all of the satellites orbiting earth, allowing the user to pan around. Am I insane, or does that exist?
posted by sharksandwich on Aug 3, 2008 - 7 answers

Why isn't the moon headed to the earth?

AstroPhysics: Why doesn't the moon move towards the earth, and other satellite related questions. [more inside]
posted by dpx.mfx on Aug 21, 2006 - 22 answers

From the Moon to the Earth

Hypothetical from Moon-orbit to Earth-orbit question. I already know about free return trajectories, but what if something went wrong and your ship (currently orbiting the moon) didn't leave lunar orbit at the point it was supposed to? What might happen? [more inside]
posted by np312 on Aug 17, 2006 - 8 answers

Nuked from orbit?

What is the origin of the phrase, "(something) should be nuked from orbit," or "nuke it from orbit?" [more inside]
posted by mikeh on Jul 23, 2006 - 24 answers

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