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What else can I help you with?
What does the red shift tell scientists?
The redshift tells scientists how fast a star or galaxy is moving away from us.
How do you know your Galaxy rotates?
Astronomers can determine the rotation of a galaxy by measuring the Doppler shift of the light emitted by stars and gas within the galaxy. The rotation speed can be calculated by observing the difference in wavelengths of light from objects moving towards or away from us. This information allows scientists to create maps of how the galaxy's stars and gas are moving.
Is it true that the farther away from Earth a galaxy is the slower it is moving?
incorrect. The farther away from earth a galaxy is, the faster it is moving.
How is the cosmological motion of a distant galaxy fundamentally different from the motion of an object speeding through space?
The object - planet, meteoroid, comet, spaceship - is traveling THROUGH space; the galaxy is moving away WITH space. That is, the space itself is expanding.
What galaxy did hubble discover?
-- Once you get past our "local group", every galaxy is moving away from us. -- The farther any galaxy is from us, the faster it's moving away from us.
How fast is the milky way galaxy moving away from us?
We are part of the milky way galaxy, so we are moving with it.
According to Hubble's law the farther away a galaxy is?
According to Hubble's Law, the farther away a galaxy is the, faster it is moving away
What direction are observed galaxies moving from your galaxy?
Away.
How do astronomers determine the speed at which a galaxy is moving?
By examining its spectrum, and identifying absorption lines in it. Lines are shifted toward shorter wavelength if the object is moving towards us. They're shifted toward longer wavelength if the object is moving away from us.
What happens when scientists add heat energy to an object or take heat energy away from an object?
When scientists add heat energy to an object, the particles in the object gain kinetic energy, causing them to move faster and increasing the object's temperature. When heat energy is taken away from an object, the particles lose kinetic energy, moving slower, and decreasing the object's temperature.
If an astronomer is observing a galaxy and notices red shift what do we know about the galaxy?
That means the galaxy is moving away from us.
What does the Doppler shift in starlight give us?
It tells us whether a star (or galaxy, or other object) is moving towards us, or away from us; and how fast.
