Do single stars tend to rotate in the same direction as the Sun and/or the Galaxy?

Do single stars tend to rotate in the same direction as the Sun and/or the Galaxy? This is a more technical question, so I am going to give a more technical answer, but first the simple answer. No, the rotation of a single star is not aligned with the galactic rotation because there are more … Read more Do single stars tend to rotate in the same direction as the Sun and/or the Galaxy?

What is the difference between “twin suns” and “binary suns”?

Thanks for the great question! Many people get confused about these two terms as you do. Hopefully I can help clarifying the difference. The dictionary definition of “Twin” is a person or thing that is exactly like each other, or something containing or consisting of two matching or corresponding parts. Therefore, when an article says … Read more What is the difference between “twin suns” and “binary suns”?

Is it possible to see the Andromeda galaxy with the unaided eye when in dark sky country within Texas?

I live in Dallas, where we feel lucky to see Jupiter and Saturn. Is it possible to see the Andromeda galaxy with the unaided eye when in dark sky country? It is, as you obviously know, a function of relative brightness. The darker the night sky, the dimmer the objects that can be seen. In, … Read more Is it possible to see the Andromeda galaxy with the unaided eye when in dark sky country within Texas?

When I look up and see the Milky Way galaxy, am I looking towards the center of the galaxy or towards outer space?

When I look up and see the Milky Way galaxy, am I looking towards the center of the galaxy or towards outer space? Tell me a good astronomy joke while you’re at it. That is a great question! In fact, you are generally looking into the DISC of the Milky Way galaxy. I’m sure you’ve … Read more When I look up and see the Milky Way galaxy, am I looking towards the center of the galaxy or towards outer space?

In an expanding universe, why are Andromeda and the Milky Way destined to collide?

If the Universe is expanding and all galaxies are moving apart from one another, why is it that the Milky Way and Andromeda will one day collide? Thanks for the great question! To get to the answer, we will need to look at which forces operate on small and large astronomical scales (distances). The two … Read more In an expanding universe, why are Andromeda and the Milky Way destined to collide?