Starship Asterisk*

Why are all stars, planets, galaxies, natural satellites, and moons always rotating?

If two stars collided head on would they still retain their rotation or part of it?

I have not been able to find any threads covering my question in the FAQ department. I presume gravity is strongest at the surface of the earth. What is the effect of gravity as you approach the center of the earth? (Presuming you could measure it deep below the surface) Does it become stronger or w...

I presume the "Local Group" includes galaxies that are gravitationly attracted to each other. If The Milky Way galaxy is being attracted to the Andromeda galaxy does that also mean that all the galaxies in the Local Group are being attraacted to one another or are they revolving around som...

I understand that the Andromeda Galaxy is approaching our Milky Way Galaxy.
If the Universe is expanding why arn't all galaxies moving away from each other?

[quote="boswachter"]I could even benefit of it here in Kiev, Ukraine

Happy holidays to everyone

Henk

PS: Christmas is on January, 7 here...[/quote]

I cannot tell you how impressed I am with the quality of the photographs shown in APOD. The latest one showing the stripes on the moon of the planet is so clear it looks like a photo of our moon from earth. I would like to know how long it takes to obtain a single image from a space probe so far awa...

Is there any evidence of colliding stars in our galaxy or other galaxies?

If two stars collided head on would one or the other or both be completely destroyed?

I found the article about Albireo very interesting and have a few questions to ask. The distance to Albireo is reported to be 380 light years from our Sun, but the distance between the two stars was not mentioned although they take 75,000 years to orbit each other. Is it possible to determine their ...

The asteroid or satellite shown in the latest photograph shows a lot of pock marks or craters. The commentator said it was a very old object b ecause of these indentations. My question is whether scientists can tell how old an object is from looking at it and inspecting the number of "hits"...

8) Does the term "Universe" include everything that exists regardless of whether man can photograph it or not? Does the universe have a distinctive three-dimensional shape that can be visualized? Are the most sophisticated telescopes in the world today limited to any particular distance?. ...

It was mentioned in a posting that a group of galaxies were being influenced by the galaxies nearest to them. Myquestion is: Is every bit of matter in the universe affected by all of the matter? Is every galaxy, no matter how far away affected by all of the other galaxies? Can a star exist in the un...