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The bending of light around a large distribution of matter, such as a cluster of galaxies is known as gravitational lensing. Gravitational lensing occurs due to the curving of space-time caused by a massive gravitational field caused by either by a large distribution of matter, such as a galaxy cluster or a black hole.
This curving of space-time causes light rays passing through to bend around the gravitational center. A very large amount of matter is needed in order for the lensing effect to occur, typically in the range of a hundred to a thousand galaxies. The bending caused by a single star would be negligible.
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Why do stars look like they are moving?
if you are moving then the stars may look like their moving but their not but shooting stars move
Why do planets like Venus look so bright in the night sky if they do not emit light?
there are certain times when those planets... like venus..... are in an alignment with the sun and the sun's light... letting those planets REFLECT the same light the stars do...... the sun's light...... without the sun's light..... the stars too would be dark ^^
Why does the light that you see from the stars look very faint?
because there far
What do stars look like in real life?
The stars in the sky are very much like our Sun.
What does a constellation look like?
Like a group of scattered stars.
Why do billions of stars appear as big patches of light in the night sky?
Because the stars emit light. The closer they are, the brighter. Also planets reflect the light off of the stars, so they also look like stars.
Can you see the stars if you travel at light speed?
If you set off at light speed then if you look behind you everything will look exactly like at the moment you left.
Why do stars look tiny?
Because they are far very away from the Earth. In fact, even in large telescopes, they still appear as just points of light.
Although stars look like small white dots of light they actually come in a variety of what?
Colors
Why do stars look like they are moving?
if you are moving then the stars may look like their moving but their not but shooting stars move
Why could you see the stars but not the planetes?
you can see mars and Jupiter but they look like stars unless you use a telescope ------------------------ Because stars shine - give off light - while planets do not.
Where is the best location to look at stars?
Go out in the middle of nowhere, like a field or a small hill. That way there isn't any light pollution blocking the stars.
Can sun light reflect from a satellite?
Yes. You can easily see satellites, after sunset. They look like moving stars.
Why do stars take so long to change?
The stars are light years away which is the distance light travels in a year. A light year is about 3x108km. The farther something is from you the slower they seem to travel so the stars don't look like the are moving. In reality, they are moving very fast.
Why do planets like Venus look so bright in the night sky if they do not emit light?
there are certain times when those planets... like venus..... are in an alignment with the sun and the sun's light... letting those planets REFLECT the same light the stars do...... the sun's light...... without the sun's light..... the stars too would be dark ^^
Where did the stars go during the day?
They are still there. But the light from the sun diffuses through the air around the earth, and the air becomes so bright that it drowns out the light of the stars. If you go to a place where there is no air ... like the International Space Station or the moon ... you can see the stars even when the sun is also in the sky. in other words the light from the sun makes it look like the stars disapeared : )
Why cant you see the stars during day?
Stars do shine during the day. The reason we don't see them is that the light from the sun is much brighter than that of other stars on earth and therefore blocks out the light of other stars at daytime.We normally would see upwards of 2,000 stars in the night sky, but do not because artificial light sources like streetlights bounce light upward and block out the stars in a similar fashion.The answer lies in the behavior of light we call scattering, and in the way the eye works as light levels increase. Though the stars in the sky shine all the time, during the day, the sun is so bright and so much of its light is scattered in the atmosphere that the tiny points of light we see at night are not visible in all the scattered sunlight. The "incoming" light certainly gets to our eyes as the sun is so bright we can't look directly at it, but tons of light coming in is scattered by air and everything in the air that we get light coming at us "from all directions" up in the sky. The result is that the eyes cannot resolve tiny light sources that are stars. Another way to look at it is that the eyes are "overloaded" by all the scattered light from the sun, and they are "desensitized" by it. We will, therefore, not be able to see those tiny points of light during the day that are relatively easily seen at night.
