Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 3 weeks ago

Which is travelling the fastest: Earth in our solar system, Our solar system in our galaxy, or our galaxy moving through space?

11 Answers

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  • 3 weeks ago

    All motion is relative. It depends what you measure their speed relative to.

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  • Rowan
    Lv 7
    3 weeks ago

    They're all in the galaxy moving through space, so it's a trick question. BTW, without having any land mark to tell where empty space is, it's almost impossible to know how fast you are actually travelling through it. You can see how fast everything is moving away from you. 

  • 3 weeks ago

    All at relative Velocities

    The Milky Way against the Cosmic Microwave Background

    The Sun and our Solar System through Our Galaxy

     The Earth in its orbit which is approximately 33, 000 mph

    New Horizons is on its way at 35, 000 mph towards its third and last Kuiper Belt Object, where it is to deploy the last remaining power that it has to use a Gravity assist and Slingshot itself out towards the Oort Cloud at 45, 000 mph

    It will break V1's speed record and will eventually overtake it

    Probably beating it to the Oort Cloud

    Attachment image
    Source(s): New Horizons at Pluto
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  • 3 weeks ago

    Earth, relative to the Sun = 30 km/s = 108,000 km/h = 67,500 mph = 58,620 knots

    Sun, relative to Galactic centre = 230 km/s = 517,500 mph

    Galaxy, relative to Cosmic Background = 400 km/s = 900,000 mph

    All these are approximate.

    For example, Earth's average orbital speed is closer to 29,746 m/s

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  • 3 weeks ago

    I don't know what you mean by "moving through space". Could you give a reference for this movement? All motion is relative, so we can't talk much about motion until we agree on a reference.

    Relative to the Large Magellanic Cloud, our galaxy is moving at 278 kilometers per second. Relative to the Sagittarius dwarf galaxy, the speed is 140 km/s.

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  • 3 weeks ago

    Depending on which point you measure it from, our galaxy moving through space...

    Earth orbits the sun at about 66,600 mph. 

    Our solar system orbits the center of the Milky Way at about 515,000 mph. 

    Our galaxy is moving in relation to the Local Group's center of gravity at about 1.3 million miles per hour. 

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  • 3 weeks ago

    In relationship to what?  Some arbitrary fixed point?  There are no fixed points. 

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    • neb
      Lv 7
      3 weeks agoReport

      The amount of blue/red shift you see tells you your velocity with respect to the CMBR frame, and also tells you your direction of motion. Motion with respect to the CMBR is the only thing that makes sense given that it is a universal frame.

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  • Mark
    Lv 7
    3 weeks ago

    Apparently the galaxy moving through space.  That is one reason why "transporters" will never work long-distance - everything isn't where it was just a second ago.)

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  • 3 weeks ago

    The Galaxy traveling through space. The Galaxies are traveling apart and this has been accelerating. .

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  • 3 weeks ago

    My guess is the galaxy moving thru space.

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