Milky Way Galaxy

Astronomers have found evidence that there is a large black hole at the center of our galaxy. Some theories make it possible that there are smaller black holes here or there, but I'm not aware that any have been detected.

Yes. Roughly 5% of the stars in ht Milky Way are larger than out sun, which works our to a total of about 10 billion stars. The sun only appears bigger than other stars because it is much closer to us than any other star.

The Milky Way is the center of the visible universe, as the boundary where matter travels away from the observer faster than light is at a constant distance in all directions. The universe beyond this point is unobservable, as the spacetime is moving away faster than light.

The stars in the Milky Way move in the opposite direction of the sun.

To know that we would need to know the mass of all objects in the Galaxy. To date, we are unable to determine that - partly because of limitations in technology but mainly because about a third of the Galaxy is shadowed by the central core and is thus unobservable.

Our whole solar system, all the planets and everything, are part of the Milky Way galaxy. So, asking how far doesn't really make sense, because Neptune is in the Milky Way.

I live in one of many rooms, in one of many houses, on one of many streets, in one of

many suburbs, of one of many cities, in one of many states, in one of many countries,

on one of several continents, on the surface of one of several stones, in orbit around

one of possibly as many as 400,000,000,000 stars in the Milky Way.

(We recently learned that the Milky Way is one of several billion galaxies in our universe,

and it's now being suggested by Physicists and Cosmologists that our universe could be

only one of many.

A lot of people who are just as small as I am, and some who I suspect are even smaller,

are locked in fierce ideological debate over how all of this came to be. I haven't heard

too many of them express their gratitude that it did.)

There is only one Sun. Sun is the name of the star that is closest to Earth. While light from all stars eventually reaches Earth, the Sun's light is the only one close enough to generate heat.

That we need better theories and measurements. We cannot directly measure the mass of anything we can't put on a scale in a laboratory. What we can do is measure things like the light and other electromagnetic radiation coming at us from other objects in our direct line of sight, and apply theoretical computation and a few good guesses to get an approximation of what the mass of that object is. Taking into consideration that there are millions of objects in our milky way, and that more than half of them are not in our direct line of sight, these approximations change quite a bit when we apply different theories to what we have measured. Also, we are getting better tools to measure with, like better telescopes, detecting a wider range of electromagnetic radiation, putting some of these tools on sattelites so we get a better view, and developing more workable theories to help us explain the universe around us based on these measurements.

When we talk about large stars, lets make sure we know what we mean. Do you mean the brightest, largest in circumference or largest in terms of mass (heaviest) ?? There are less massive starts, which outshines more massive cousins and as stars go through their life cycle, at times they can expand dramatically (larger circumference) just prior to dying.

The most massive star is generally thought to be the Pistol star near the center of our galaxy. This being said, we have not found all the stars in our galaxy yet, and larger (more massive) stars could still be found.

All the planets in the solar system are approximately the same age. Extrasolar planets are all approximately the same age as the star they orbit.

Population II (low metallicity) stars are the oldest stars, but they're unlikely to have planets.

No. The universe is expanding; galaxy clusters are getting farther apart. This expansion only works over distances of hundreds of millions of light years, not the much smaller distances within galaxies.

The closest star to the sun is Proxima Centauri, but its brighter neighbor Alpha, double star, is so nearly the same distance that data about it are usually given. It is about 4 light years distance, or about 3.8x1016 m.

Probably, but at present we have no way to get out there. It may take tens of thousands of years to be able to get a camera out there, and then it would take another 10,000 years for the signal to get back to Earth.

There are many asteroid formations in the Milky Way. Of those, three orbit our sun, Sol. The first, and most commonly known, asteroid formation in our system is the Asteroid Belt (sometimes called the Main Belt). It is located approximately 3 AU (448,793,612.1 kilometres) from the sun, and is comprised of mostly rocky asteroids in a belt formation. The second is the Kuiper Belt, a belt formation of icy asteroids and dwarf planets. The third is the Oort Cloud, a theorized cloud of asteroids orbiting far beyond the Kuiper Belt.

We don't know exactly, but scientists believe that red dwarf stars, which are very small and very slow-burning, may date from the early history of the universe about 15 billion years ago. The problem is that red dwarf stars are very small, and so very dim; and thus difficult to see from any real distance.

The Milky way is a galaxy. A spiral galaxy, to be more precise.

The Milky way is a galaxy. A spiral galaxy, to be more precise.

The Milky way is a galaxy. A spiral galaxy, to be more precise.

The Milky way is a galaxy. A spiral galaxy, to be more precise.

it is so we get hours,days,weeks,months,years and leap years

Well, no. That is what happens when the planet earth orbits the sun.

Our sun doesn't exactly orbit the Milky Way. Rather, it travels along with it along one edge.

he discovered it on

There are four major arms in the Milky Way

* 3 kpc and Perseus Arm * Norma and Cygnus Arm with a new extension. * Scutum Crux Arm * Carina and Sagittarius Arm There are also a number of smaller arm, or spurs.

* Orion Arm (Of which the Milky Way (Our Galaxy) is included) * New Outer Arm

See related link for pictorial representation.

The Milky Way was born when countless warm gas clouds come together under the pull of gravity. When the cloud collided, Stars were born. Nine billion years after its birth, the Milky Way settled down. there is a huge black at its centre, it is quite. The Galaxy now consists of billions of stars arranged in a beautiful spiral shape.