Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 8 months ago

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

Relevance
• 8 months ago

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

• Anonymous
8 months 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.

• 8 months 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

Source(s): New Horizons at Pluto
• 8 months 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

• 8 months 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.

• 8 months 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.

• 8 months ago

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

• Mark
Lv 7
8 months 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.)

• 8 months ago

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

• 8 months ago

My guess is the galaxy moving thru space.