NewScientist The Last Word - Tag 'Planets' details

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Does Earth's liquid, chewy mantle rotate at the same rate as its more observable crispy crust?
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Asked by arakoczy
on 2011-02-18 03:05:22

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Categories: Planet Earth.

Tags: Earth, planetearth, Planets, orbit, Daylength, Day.

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Terraforming At our current technological level, if humanity pulled its economic resources together to fund such a project, which would be the most feasible planet in our solar system to terraform (as in, would it be easier to warm up mars or cool down venus)?
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Asked by Warpdrive76
on 2011-01-30 00:22:53

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Categories: Our universe.

Tags: SolarSystem, Planets, terraforming.

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Has anybody heard of the planet "Nibiru"?? Planet X, aka Nibiru, has a 3000 year orbit around the sun, has anybody else heard of it?
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Asked by IknowAboutNibiru
on 2010-11-14 01:35:15

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Categories: Our universe.

Tags: Space, Timetravel, Planets, nasa, secret, nibiru.

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Do we know the thermodynamic ballance of planets (separatelyq not in general)?

Earth, for instance - does it emit more energy than it receives from solar wind?

I found this article today and there is a statement that planets are generally giving away more than they get, in energy terms. I'm not sure if it's meant to be read in general context though.

So... do we calculate the thermodynamic properties of the planets in that manner? Are there 'hot' and 'cold' planets? Is this property significantly related to star proximity and is there a general trend?*

*I suspect the answer of the last question is - 'yes, they all get colder, due to enthropy'. But still, what do you think?

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Asked by hugolabs
on 2010-11-11 08:50:26

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Categories: Our universe, Planet Earth.

Tags: thermodynamics, Planets.

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Why we have smaller ground surface than ocean? Why Earth has Larger ocean surface area than ground ?
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Asked by vivekbelkonikar2010
on 2010-11-10 21:49:58

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Categories: Environment.

Tags: weather, Earth, Planets, Surface.

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How Dark is it in deep space?

Whenever you see the Starship Enterprise off on a mission, an 'outside' shot always shows the vessel in full visiblity - but how visible would it be? must you always be illuminated by lights on the top, or a planet nearby? If we were away from any planets and suns, and I were to space walk a few hundred yards away from the ship, and it had no lights on the outside, would I only see stars and a black 'shadow' where the ship was? Or is there always residual light? could I for example see my own hand in front of my face? or is there a point where you can see nothing nearby, but only stars and galaxies in the distance?

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Asked by markus2004
on 2010-09-09 19:43:31

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Categories: Our universe.

Tags: Space, light, sun, sunlight, Planets, Galaxy, Spaceenviroment, spaceship.

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Why do planets have elliptical orbits, when moons have circular ones?
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Asked by paigetheoracle
on 2010-07-12 11:56:20

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Categories: Our universe.

Tags: Planets, orbits, moons.

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If every man, woman and child on Earth took one deep breath in and out simultaneously, would there be any noticeable effects?
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Asked by GiftHorse
on 2009-10-20 19:11:30

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Categories: Planet Earth.

Tags: Earth, Breathing, Planet.

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Why are planets round ?
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Asked by Whitessx
on 2009-09-27 21:58:05

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Categories: Our universe.

Tags: Planets, Round, Shape.

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Water world The Last Word has told us what percentage of the UK's surface area is roads (24 January 2004), but having just returned from the Netherlands I would like to know what percentage of the surface area of that country is water.Byron Hambleton, Lille, France(Image: NASA World Wind)
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