Follow the reluctant adventures in the life of a Welsh astrophysicist sent around the world for some reason, wherein I photograph potatoes and destroy galaxies in the name of science. And don't forget about my website, www.rhysy.net



Monday, 29 February 2016

Ask An Astronomer Anything At All About Astronomy (XVIII)

A small batch of questions this week as I'm concentrating on a number of visualisation projects right now.

1) Since matter can never be created or destroyed, are you the same age as the Universe ?
It can and you aren't.

2) If we can see back in time is it also possible to see forwards in time ?
No.

3) Does the Sun make a corkscrew motion around the centre of the Galaxy ?
No.

4) If the Sun moves out of the plane of the Galaxy wouldn't it spiral inwards ?
No.

5) How do we know about the Sun's motion through the Galaxy ?
By looking very carefully.

6) If you travel fast enough will you turn into a black hole ?
I'm very grateful to Jonah Miller to answering this question, originally asked some weeks ago, which I could not. Thanks, Jonah !
No ! But yes. Maybe. It's complicated.

2 comments:

  1. Could dark matter be the effect of a parallel universe on our universe?

    ReplyDelete
    Replies
    1. Nope.
      http://astrorhysy.blogspot.cz/p/q-a.html#darkmatterfromanotherdimension

      Delete