Galaxies

The dark matter theory explains the decrease in brightness of spiral galaxies because dark matter does not emit, absorb, or reflect electromagnetic radiation, making it invisible to telescopes that rely on detecting light. The presence of dark matter provides extra mass in the galaxy, which affects the gravitational interactions within the galaxy and with other galaxies in a way that accounts for the observed decrease in brightness at large distances from the center.

Earths atmosphere consists of 78.09% Nitrogen, 28.95% Oxygen and 1% trace elements, mainly Argon. The martian atmosphere consists of 96% Carbon Dioxide, 1.9% Nitrogen, 1.9% Argon, with oxygen present only as a trace element. Where you to inhale the martian atmosphere you would suffocate. The atmosphere on mars is also very thin, only 0.06% that of the Earth's so your blood would boil etc. The temperature is also incredibly cold ranging from - 87°C, rarely going above freezing, so humans could not function there with no form of space suit.

to enter a parallel universe you have to be able to be able to go in a black hole without dieing and have some sort of way of coming back out and since you are going to be stretched out your going to have to find a way in\out in one piece like a super suit

Additional answer: Because of quantum theory, you may be able to enter a parallel universe using electrodes that alter your brainwaves to a different frequency, thus completely changing your reality. It may or may not be a parallel universe, but a very vivid dream that you are completely submerged in.

You can also enter altered brain states by playing low frequency sounds while you sleep or meditate. They're called hemi-sync sound patterns and they cause you to lucid dream. Remember that parallel universes are not actually trillions of light years away but right next to you; they co-exist in the same universe you are in, yet you cannot observe or interact with them normally. This is due to collapse of reality into a single state by observation.

That sounds like an exciting mission! The images captured from beyond the halo of the Milky Way Galaxy could provide valuable insights into its structure, composition, and evolution. This data could help scientists better understand our place in the universe.

It's really impossible for us to know but we can give pretty good simulations. You see Science is techniccaly limited to what humans can observe. Seeing that the only way to observe the milky way is to travel 1,000,000 light years away is impossible you can't scientifically prove how many arms we have. How ever by calculating the distance, and right ascension of millions of stars we can get a good guess. Most pictures will agree that the Milky Way has something to the effect of 5 arms. It seems like much more because each arme loops around 3-4 times.

Milky plastic refers to a type of plastic material that has a cloudy or opaque appearance, similar to milk. It is commonly used in various applications, such as packaging, electronics, and automotive parts, due to its aesthetics and strong properties.

For nearby stars, the use the parallax effect - the fact that stars change their apparent position, due to Earth's movement around the Sun. The larger the parallax angle, the closer the star is to Earth.

Simple answer no if the Milky Way did not exist there would be no human race.

We are part of the Milky Way galaxy in the most fundamental ways. We live here. We evolved here. Every element that goes up to make the Earth and you except hydrogen and most of the helium comes from stars that lived and died billions of years ago within the Milky Way. We owe our entire existence to the Milky Way.

It is absolutely probable that life has arisen in far off galaxies. They might even look remarkably like humans although that is very doubtful but still they will not be humans.

About one. Our galaxy is surrounded by several dwarf galaxies, that are extremely close to us.

About one. Our galaxy is surrounded by several dwarf galaxies, that are extremely close to us.

About one. Our galaxy is surrounded by several dwarf galaxies, that are extremely close to us.

About one. Our galaxy is surrounded by several dwarf galaxies, that are extremely close to us.

The angular size of the Crab Nebula can be calculated using the formula θ = 2 * arctan (diameter / (2 * distance)). Substituting the values (10 light years for the diameter and 6300 light years for the distance), the angle subtended by the supernova remnant in the sky is approximately 0.054 degrees.

No. there are, in fact, clusters of galaxies that are revolving around one another as a result of their mutual gravitational influence. Now and then, galaxies in a cluster will collide with one another with some spectacular results (over billions of years). Our galaxy, The Milky Way, is on a collision course with the Andromeda galaxy, but no one alive will be around to watch. Occupants of earth may never know it is happening.

Our galaxy, the Milky Way, would appear as a spiral-shaped structure from a distance, with a central bulge surrounded by long arms of stars, gas, and dust radiating outwards. Depending on the observer's perspective, they might see the galaxy edge-on, face-on, or at an angle, which would affect how they perceive the spiral structure. They would also see the light emitted by billions of stars, creating a beautiful and majestic sight in the vastness of space.

The Big Dipper is also known as the Plough or the Charles's Wain, while the Little Dipper is also known as the Little Bear or Ursa Minor.

Not generally, but galaxies do collide sometimes. In fact, the Andromeda Galaxy will probably collide with the Milky Way in about 3 billion years or so. In the collision, stars are often "flung" from one galaxy to the other, or thrown out of the original galaxy entirely.

Follow the link below to see what happens when galaxies collide!

Scientists know that elliptical galaxies do not contain many young stars because observations have shown that they have mostly older stars with low levels of interstellar gas and dust needed for star formation. This lack of gas and dust suggests that these galaxies have exhausted their supply of materials for forming new stars and are no longer actively forming young stars.

Spiral galaxies tend to have blue colors due to the presence of young, hot stars that emit blue light. Elliptical galaxies, on the other hand, are typically redder in color because they contain older stars that emit more red light. This color contrast is a result of the different star formation histories and compositions of the two types of galaxies.

Elliptical galaxies are massive blobs of stars characterized by their round or ellipsoidal shapes. These galaxies are composed mainly of older stars and have little to no ongoing star formation activity.

The age of an individual star can vary; they were all made at different times and have different life spans. Stars can range from a few million to a several billion years old. The oldest star yet discovered, HE 1523-0901, is an estimated 13.2 billion years old.

Edge-on galaxies are galaxies that are viewed from Earth at an angle where their disk appears edge-on, rather than face-on. This orientation makes it difficult to discern spiral arms or other details in the galaxy's structure. These galaxies are useful for studying the distribution of stars and dust within them.

A galaxy is mostly empty space. We have photographs from the Hubble Space Telescope showing galaxies in collision; it takes hundreds of millions of years because they move fairly slowly. But both galaxies are disrupted and the stars are flung off in long swaths of stars.

No, the Little Dipper is not visible from New Zealand because it is circumpolar and only visible in the northern hemisphere. However, New Zealand does have its own distinctive star patterns visible in the night sky, such as the Southern Cross.

Palomar 1 is located in the Milky Way galaxy's halo, not in the spiral arms. It is a globular cluster, which is a spherical collection of stars orbiting the galactic core.

Yes. It takes a long, long time for one turn, like 200 million years.

Yes. It takes a long, long time for one turn, like 200 million years.

Yes. It takes a long, long time for one turn, like 200 million years.

Yes. It takes a long, long time for one turn, like 200 million years.

All elements were created in the sense that the universe began with The Big Bang. Hydrogen was the first atom to form from the subatomic particles, and the hydrogen coalesced into early stars, which formed the next generation of lighter atoms. All the heavier elements were produced in subsequent generations as new stars formed, lived and died in explosions we now call novas and supernovas.