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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.

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Is there another solar system entering ours?

Technically, no, because our system is named for our star or sun, "Sol". Hence, Sol-ar or Solar system. The question becomes, "Is there another star system entering ours?". In general, the parts of the universe are all moving away from each other; however, there are a number of small galaxies that appear to be slowly (millions of years) moving toward our Milky Way galaxy. But, still 'No', there are no other star systems entering ours.


Is there another solar system far away from ours?

Yes, there are countless solar systems far away from ours in the vast universe. These distant solar systems may contain planets, stars, and other celestial bodies just like our own solar system. Scientists have discovered many exoplanets in these systems through various methods of detection.


If the other galaxy bigger than ours or smaller?

By definition the question is incorrect. There are not only 2 galaxies in our universe, but billions. Each galaxy is a different size and is made up of millions or stars and planets. Our galaxy is called the Milky-Way, and our closest neighbouring galaxy is called the Andromeda galaxy.


Classified into different types elliptic spiral and barred spiral ours is the milky way?

The Milky Way is classified as a barred spiral galaxy. This means it has a central bar-shaped structure with spiral arms extending from it. The other type mentioned, elliptic spiral galaxies, have a more elliptical shape without distinct spiral arms.


How is it that Astronomers can point to the Earth and our solar system in photos of the Milky Way as surely these were taken from the Earth's point of view looking outwards?

Astronomers can determine Earth's position within the Milky Way by studying the distribution of stars, gases, and dust in the galaxy. By understanding the structure of the Milky Way and analyzing the position of objects in the sky relative to Earth, astronomers can create accurate visualizations of our location in the galaxy, even though these images are not taken from a point outside of our solar system.