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That happens when the individual stars are too faint to se seen individually.
It is also because they are so far away from Earth but quite close to each other. It's like seeing two lights which are far away from you. They appear as one big light instead of two separate ones.. It is the same principle with stars.
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∙ 14y ago
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How many light years are equal to 4.5 billion years?
A light year is a measure of distance, not time. It is the distance light travels in a year.
The longest distance light can travel since the beginning of the universe is known?
Well, it's complicated.The universe is about 13.8 billion years old. In that time, in a vacuum (and while interstellar and even intergalactic space isn't a perfect vacuum, for these purposes it's close enough), light could have travelled 13.8 billion light-years. That's pretty straightforward.Where it becomes non-straightforward is in determining the radius of the observable universe. If there's only been time for light to go 13.8 billion light-years, then the edge of the observable universe should be 13.8 billion light-years away, right?Wrong.Because the universe is expanding, light that started on its way 13.8 billion years ago got a certain percentage of its traveling done when the universe was smaller. It turns out that the earliest thing we can see is the surface of last scattering or the cosmic microwave background radiation (we can't see past that because it's effectively opaque), which is currently about 46 billion light years away. (The theoretically observable universe is actually slightly larger than that, since the decoupling event when the universe became non-opaque happened when the universe was already about 380,000 years old).So, while light can only possibly have gone 13.8 billion light years, light that started on its way to us 13.8 billion light years ago and is reaching us now came from objects that are "now" about 46 billion light years away.
Science says the universe is 12 to 14 billion years old because light from that far away has reached us but couldn't there be objects billions of light years further away?
Yes, current theory and observations suggest that the age of the universe is between 13.6 and 13.8 billion years (earth years).However please note that a light year is the distance a beam of light will travel in one earth year.
Why don't stars appear in photos of astronauts in space?
the light from sun is reflected &it is too bright
How many galaxies are in the Power Rangers Universe?
There are over 100 billion galaxies (with 100 billion+ stars (each containing 9 planets and 170+ moons)) in each one; as well as asteroids and nebulae) in the Power Rangers universe. Their light has taken 13 billion years to reach Earth.
Why do billions of star appear as clouds or patches of light?
Because they are very far away.
What provide cloud formation picture?
Blocks of clouds appear in waves or blobs in patches of light and dark. They are gloomy on cloudy days and stunning when they form rolls or waves.
What makes clouds turn gray?
The thickness and height of the clouds causes them to turn gray. Other clouds appear white because they are thinner and let light through.
Why do billions of stars appear as clouds or patch of light?
That happens when they are so far away that you can't distinguish the individual stars. Also, to appear as "clouds", there must be a large amount of stars together.
Which. Planets clouds cover reflects light from the sun making it appear bright in the sky?
Venus
What cause's cumulonimbus clouds to appear dark?
Light being blocked by water droplets in the cloud.
Why do clouds look like cottenballs?
Light reflected back from the water droplets scatters all the colours of the rainbow - making the clouds appear white.
Are clouds dark at night?
No clouds always appear white. It is only night because the Earth is rotating and the Sun is not shining light on that part of the Earth.
What are low sheet-like clouds called?
Low sheet-like clouds are called stratus clouds. They are typically gray or white in color and appear as a uniform layer covering a large portion of the sky. Stratus clouds often bring steady, light precipitation such as drizzle or light rain.
How does clouds affect people and season?
Clouds come in different types etc. Different types of clouds appear at different times and affect the amount of sun light that reaches the Earth, the amount of rain etc.
What is the color of cumulus clouds?
Clouds are merely water particles suspended in the atmosphere. Their color is heavily dependent on the color of light that enters them. Because the light that comes from the sun is perceived as white, clouds appear white for most of the day. Thunderstorms tend to be fairly large, thus their base appears dark because much of the light from the sun has already been blocked. Becasuse the atmosphere bends the light from the sun in the morning and evening, clouds can appear red or orange during a sunrise or sunset.
Why the rainy clouds are black?
Rain clouds appear dark in color because of their overall density. As water droplets accumulate, their high concentration absorbs light instead of scattering it, resulting in the appearance of dark rain clouds.
