NewScientist The Last Word - Tag 'Space' details

Tag 'Space' details

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What does the night sky really look like? When we look at the night sky, we see the stars in the past - the further the star, the further into the past it is. As everything is moving about, many of our favorite stars have probably moved vast distances, since emitting the light we now see. Has anyone ever made a map of where everything is right now?
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Asked by BigJon
on 2011-02-18 11:26:19

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Categories: Our universe.

Tags: Space, Timedistancetravel, maps.

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Theoretically, what is the fourth dimension? I always thought it was time, but I've been informed that space/time composes part of the third dimension.
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Asked by jaffabeans
on 2011-01-23 21:59:12

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Categories: Our universe.

Tags: Space, time, dimension, fourth.

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moon Why 'on earth' do we see only one side of the moon ?
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Asked by ponderer
on 2011-01-14 06:43:12

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Categories: Our universe, Planet Earth, Unanswered.

Tags: Space, Earth, moon, SolarSystem.

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What happens to the balloons that fly into the sky? In my lifetime I have seen many balloons floating up into the sky... But where do they go?
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Asked by momosteiny
on 2011-01-10 18:44:44

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Categories: Weather .

Tags: Space, balloon, float, sky, clouds.

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Apologies, having read a bit deeper into this site I can't help but conclude that I phrased my previous question poorly.

If I've understood this, at least to some extent, everything always travells at the speed of light (or c to be more precise), provided you take account of the speed of travel through time as well as space, something at a fixed point in space travels through time at c and something travelling through space at c ceases to travel through time? The earth, sun etc. are not fixed points in space, they move through space as does our galaxy as well. My question is really where this puts us on a scale from a fixed point in space too something travelling through space at c, and how much of an effect do we experience (I realise we would be unaware of it), compared to something not moving through space at all. If I were to look out into deep space and by some weird coalescence of improbabilities were to see a person standing at a fixed point, unmoving in space, how much faster would they appear to age (travel through time) from my perspective (still traveling at normal earth speeds) or would this be the case at all? Many thanks,

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Asked by This_is_me
on 2010-12-20 11:46:50

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Last edited on: 2010-12-20 13:42:43

Categories: Our universe, Planet Earth.

Tags: Space, time.

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What would happen to an Ice cube on the moon? As atmospheric pressure decreases the boiling point follows. But at absolute zero, all things will 'freeze' so become solid. So would said ice cube: 1) Evaporate because of the low pressure, or 2) Stay solid, because of the temperature?
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Asked by Ed_Harman
on 2010-12-17 19:07:02

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Categories: Our universe.

Tags: physics, Space, chemistry, ice, pressure.

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How many types of Dimensions are known to mankind? Most people know about 3Ds. And some people have theories on 4Ds. So my question is, how many theories on new dimensions(if there is any) have been created? What are these new dimensions called? And have these theories ever been acknowledged by other people?
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Asked by l3irus
on 2010-12-12 23:38:51

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Categories: Unanswered.

Tags: physics, Space, time, maths, dimensions.

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Is the intention for both Herschel and the James Webb Space Telescope to orbit round L2? I've noticed NASA's James Webb Space Telescope is intended to orbit around the second Legrange point L2 once it's launched, which is the same orbit as ESA's Herschel sub-millimetre telescope currently holds - is the intention to have them both orbiting at the same point? If so, how does that work?!
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Asked by jazzy-trombone
on 2010-12-07 20:38:57

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Categories: Our universe.

Tags: Space, Universe, telescope, Legrangepoint.

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from where the universes of multiverse get energy to float, collide & expand?
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Asked by sandeep
on 2010-11-29 11:13:53

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Last edited on: 2010-11-30 08:21:14

Categories: Our universe.

Tags: Space, Universe, cosmology, Stringtheory, m-theory, multiverse.

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from where the strings in the string theory get energy to vibrate?
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