"How do we know what is at the center of the Milky Way Galaxy?"?

Answer 1

Visible light and other observations, plus a lot of guess work (also known as theory).

Super scopes, like the Hubble, have taken some great pix of the center of the galaxy we call the Milky Way. By cosmological standards, the center of the MW is not very far; so it lends itself to relatively easy scrutiny. There are other, Earth bound scopes coming on line that theoretically will be even better than the Hubble. From Wikipedia:

A new era of telescope making was inaugurated by the Multiple Mirror Telescope (MMT), with a mirror composed of six segments synthesizing a mirror of 4.5 meters diameter. This has now been replaced by a single 6.5m mirror. Its example was followed by the Keck telescopes with 10 m segmented mirrors.

These MMT are computer adjusted for the abberations caused by changing atmospheric conditions (e.g., density). So through computer enhancement, even though they are Earth bound, their effective viewing is a though they were in airless space.

Visible light, running from red to violet over the spectrum can be broken down into its component frequencies. These frequencies can be filtered out through a spectrometer. We know, from Earth bound experiments, that all elements emit certain light frequencies in favor of others when they burn. A spectrometer can find those frequencies even in the center of the MW. So we can tell what elements are present in the center of our galaxy.

Speaking of frequencies, the universe is filled with radio-like frequencies that can be tuned in and looked at. In fact, background radio frequencies were the first clue that our universe began with a big bang. Often, when visible light observations through telescopes are less than satisfactory, radio telescopes can still be used.

Suffice it to say, but the center of our galaxy is a real bundle of energy. It is loaded with stars far more dense in space than where our Sun is on the outer edge of the MW. The center probably has a black hole in addition to all those stars near the center. All these stars and a black hole emit all kinds of particles and radiation because of the energy they have. Many, if not most, of those particles and radiation frequencies can be detected. What can be detected can be studied to find out what the center of our MW is made of.

Good question.

Answer 2

The Earth can't go by ability of the middle of the galaxy. The solar orbits the middle of the galaxy in any such region and at any such distance that we are and could stay between the spiral palms of the Milky way. that's an particularly reliable ingredient, because the celebrities contained in the galactic middle and contained in the spiral palms are a lot closer at the same time than they're between the palms. Being on the point of lots of different stars is doubtlessly undesirable for the safe practices of complicated existence (like us). If yet another huge call passes too on the point persons, it can disrupt planetary orbits contained in the image voltaic device. no matter if that did not happen, the large call's gravity could knock a set of cometary nuclei out of the Oort cloud and into the interior image voltaic device. impact with honestly one of them could also be undesirable information. A 2d style of probability contains large novas--that you do not favor to be too close too. The radiation from them could wreck our environment's ability to dam risky rays from the solar--with for sure detrimental implications for existence the following (or any planet with existence, fantastically the complicated style). As an aside, for planets to boost complicated existence (a minimum of, any style we are able to at present foresee), they must have sturdy orbits for lengthy classes of time and stay away from too many asteroidal impacts and being irradiated. as a effect, that's not likely that planets with complicated existence (and as a effect sensible existence, which could be a lot more effective complicated than micro organism) will be found contained in the spiral palms or the galactic middle. those huge call platforms that are frequently contained in the palms and regularly between them also are a lot less likely to have sensible existence.

Answer 3

There is a big black hole at the center of our Milky Way Galaxy.
We can see evidence of it with our various kinds of telescopes.

Answer 4

observations of stars and things being pulled in and revolveing in the center of the galaxy, and studying other galaxies. Also, this is the same reason why astronomers think we are in a spiral galaxy.

Answer 5

We don't. There's too much dust and cruft in the way for us to get good observations. We surmise by applying what we've learned from other galaxies and matching it with what little we can observe of our own, and make assumptions.

Answer 6

Telescopes and observatories.
After obtaining data such as waves and radiation emitted, or pitcures, scientist can determine what body is at the center.

Do you really mean "how"?

Answer 7

Telescopes

Answer 8

The aliens at area 51 told us.