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Why is it important to know how long light takes to reach the Earth?
Since light travels at a known speed and changes in frequency as it travels, it provides a way of measuring the distance to faraway stellar objects (stars, galaxies). This provides important clues to the structure of the universe. To the naked eye, dim nearer objects (asteroids, planets, stars) look the same as bright faraway ones (galaxies). Some distant stars and galaxies whose light reaches the Earth today no longer exist, at least not in the form they had when the light was emitted, many millions of years ago. As for the light from the Sun, its 8-minute travel time to Earth is an interesting concept, but has little bearing on how the Sun affects the Earth.
What does observable universe mean?
The observable universe refers to the portion of the universe that can be seen from Earth, limited by the distance light has traveled since the Big Bang, approximately 13.8 billion years ago. This region encompasses all celestial objects whose light has had enough time to reach us, creating a spherical boundary around our planet. Beyond this boundary, there may be more universe that we cannot observe due to the finite speed of light and the expansion of space. The observable universe is estimated to be about 93 billion light-years in diameter.
Which is the only planet whose English name does not derive from greek roman mythology?
Earth is the only planet whose English name does not derive from Greek/Roman mythology. The name "Earth" is of Germanic origin and comes from Old English and Germanic words meaning "ground" or "soil."
Why did human eyes evolve to detect visible light?
Because the people whose eyes could not detect visible light didn't surviveto have children. They were completely outclassed, outhunted, and outfoughtby the people whose eyes could detect it.
How would your weight change on the surface of an earth size planet whose mass was greater than earth?
It would be greater.
The starlike object whose light must travel for 12 billion years to reach the earth are called?
Quasar
During whose reign did the Marathas reach maximum expansion?
during whose reign did the marathas reach maximum expansion
Why is it important to know how long light takes to reach the Earth?
Since light travels at a known speed and changes in frequency as it travels, it provides a way of measuring the distance to faraway stellar objects (stars, galaxies). This provides important clues to the structure of the universe. To the naked eye, dim nearer objects (asteroids, planets, stars) look the same as bright faraway ones (galaxies). Some distant stars and galaxies whose light reaches the Earth today no longer exist, at least not in the form they had when the light was emitted, many millions of years ago. As for the light from the Sun, its 8-minute travel time to Earth is an interesting concept, but has little bearing on how the Sun affects the Earth.
Under whose reign did mosque building reach its peak?
shahjahan
What is the explanation to scientists that Black Holes are not the Shining Stars whose light has not reached us yet?
black holes are not stars instead they have a thick mass and high gravitation which sucks everything but it can produce light which can't reach us because of it's mass.
Whose the richest dog on earth?
gunther IV is the richest dog on earth
The planet whose mass is closest to that of Earth's is?
Venus
Infrared light is what?
It is electromagnetic radiation whose wavelength is longer than that of visible light.
Whose light will never turn into dark?
God's!
How do you replace rear tail light bulb on a 1985 corvette?
I have a 1988 and I answered in this forum before about changing the tail light and I think it is the same with the 85, The problem is the space is so small the average person's arm will not fit to get at the light. I used my 14 year old son whose are was alot thinner than mine and he was able to reach up and change the bulb. He had to squeeze his arm up until he could reach it it is a very tight spot.
Whose country has the highest miss earth winners?
Philippines
Who was the person whose inventions and technologies proved that it was possible to reach Asia by ship?
prince Henry
