Galaxies

Use your creativity and imagination to recreate styles that you have already seen.

Traveling at the speed of light which is 186,000 miles per second it would take 100,000 years for you to travel across the Milky Way as observed from earth; the Milky Way is 100,000 light years across. However, if you were interviewed upon arrival at the other side, your report would be that the trip happened instantaneously. You would be surprised by this. You would also find it curious that everything you knew before you left has been gone for 100,000 years. This question and its answer are fanciful; relativistic effects are real, but it would be impossible for a human being or any other physical object to accelerate to light speed from being at rest on earth. It illustrates the curious relativistic effect that when you reach velocity 'c', you completely stop moving through the dimension of time, but everything else continues to whizz through the dimension of time at light speed. So that for you, on the trip across the galaxy, the trip would be instantaneous; time would not pass for you as you travel at the speed of light. You didn't know that right now you are traveling through the dimension of time at light speed, did you?

They thought they were lunar "seas" like the oceans on earth. They are actually vast plains. But even today, they are still called "seas".
Many early astronomers thought the dark spots on the moon were "seas". That is how all the lunar maria got their name, such as "Mare Tranquillitatis" which translates into "The Sea of Tranquility".

Yes. Galaxy clusters are clusters of galaxies and therefore larger than individual galaxies. Superclusters are clusters of galaxy clusters and so are larger then galaxy clusters. Filaments are collections of superclusters and are the largest known structures in the universe.

From Wikipedia: "The age of the system [Sirius is a double star] is estimated at around 230 million years." So, a fairly young star, at least if compared to typical stars, including our own Sun.

The ancient Greeks believed that every day, Apollo, the god of the sun, would ride a chariot a across the sky, pulling the sun behind him.

they beilive the milky way was formed in an indonesian and it is very complexist in this tixtures and especially cos they used a camera and stuff in there alwys in evrything

sadly yes. it is possible. so i suggest find someone worth while who wont avoide you.

A galaxy!

A telescope has a larger gathering area (the main lens, or the main mirror) than the human eye. This makes it possible to see the light of fainter objects. Another thing the telescope does is to increase angular resolution. This makes it possible, in some cases, to see two stars that are close together as two stars, whereas the human eye would see them as a single spot of light.

Our Solar System is part of the Milky Way Galaxy

When the Sun runs out of fuel, the Earth would not receive any energy; life could no longer exist on Earth. This isn't likely to happen though: long before that happens, the Sun will get so hot that it will kill any life on Earth. The Sun will also become very large, and it may or may not engulf (swallow) the Earth.

The two most common shapes for galaxies are a spiral, or an ellipse (circle or oval). All other shapes are considered uncommon.

1) The measured velocities of stars in the outer reaches of galaxies.

2) The distortion of the path of light from distant galaxies.

Neither of these can be explained by the amount of luminous matter we see in galaxies and in our Universe, meaning either we don't understand gravity OR there's some stuff out there we don't understand. The latter idea is conceptually easier to overcome, but it still leaves open the simple question: what IS that stuff? Because we can't answer that question, we simply call it "dark" matter.

We will, one day, likely understand dark matter as well as we understand x-rays today -- even though the latter were, when first found, so mysterious we called them 'x' rays.

You cant tell the size of a galaxy depending on what Astronomers call it. A spiral galaxy could be 100 light years wide,and an irregular could be over 10,000 light years across, or visa versa.

Pluto may be found about 40 astronomical units away from the star Sol. You could also say it is about 328 light minutes from Sol. Sol itself is in one of the spiral arms of the Milky Way galaxy, about 2/3rds from the center.

Some scientists say that the universe will stop growing once it has finished growing, some say it will explode and some say it will start to shrink.

That is a good answer but there is a mathematical constant which explains this.

Q=the density of matter in the universe. If the universe continues to expand, then Q<1

.If it shrinks ,then Q>1, if it continues to change sizes...........but never actually finishes it's size then Q=1.

Black holes do NOT project light. Hence the name black hole. Their gravity field is so strong that nothing escapes, not even light photons. The only way we know they exist by the bending of the trajectory of photons passing them. Galaxies project light via radiant energy, i.e. photons. In the same way you observe a lightbulb, you observe a galaxy. The primary difference is that we have developed instruments to not just observe galactic energy within the visible spectrum, but the entire electromagnetic spectrum, e.g. radio waves and x-rays. Those instruments would work with a lightbulb too, but they're usually busy looking at galaxies. Actually, black holes probably do give off light (and all other particles). This effect is quantum mechanical in nature and was discovered by Stephen Hawking. However, it is not at present possible to measure this. Whether or not Hawking is right, we can observe black holes, and not just because of light from distant stars bending around them. The event horizon is a very violent place, and materials are being spun around in the vortex just outside of the horizon, and they are being torn apart before entering the horizon as well. All of this creates a massive output of energy that we can observe. We get hints that we are observing a black hole by observing how nearby stars interact with it. Black holes sometimes 'suck up' so much matter that some of it escapes. http://www.tqnyc.org/2006/NYC063368/the_stars.htm

That is called a globular cluster.

It is a radiotelescope which works on radio waves instead of light waves.

Thank you ever so much, i mean i have to do this for school and no one has any idea but you do so thanks alot for this answer.

Since no one has actually provided an answer, let me give it a "shot": Any pencil lead dust or fragment broken off in the zero gravity could be inhaled by the astronaut or get into the instruments inside the capsule before they could be filtered out. Please, someone confirm?

of course heaven no one knows and i know because our God the creator of everything so no way theres all ready an omniverse so never trust google because no one knows i know then if theres an omniverse all ready who created God the creator of all huh NOW WHO IS SMART HUH! and there is a vase table and thats where we all are placed and God watching us then how do god see us see im smarter than a computer see im smart see yes now you know see and no one knows if im wrong

A constellation is a region of the sky. Each constellation shares a border with neighboring constellations. For example, in the same way that the state of Texas is a region of the United States, Ursa Major is a region of the sky.

Each constellation has a specific pattern of bright(ish) stars in it that are responsible for its name, because the ancients thought it looked like ... something. A part-fish, part-goat. A scorpion. A snake. A bear.

croquignole perms are wrapped from the ends to the scalp in overlapping layers, which produces a tighter curl at the scalp

Spiral perms are wrapped at an angle other than perpendicular to the lenght of the rod. It produces a uniformed curl from the scalp to the ends.

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