Just One Question?

[Andromeda]

Hello, I've been a member of this forum for a while. I've just been lurking and reading mostly. Never really had anything to post before, as there are many very intelligent people in here. I'm also a member of other astronomy/science forums and I thought I would post this in here as it has gotten lots of post in the other forums. I'm starting to think that it's not fair to only be allowed one question though? Even though getting some of the most fundamental questions answered would lead to other questions being answered. It would also lead to more unanswered questions.

 

If you could have one question answered about the mysteries of the Universe what would it be?

[ajb]

There are plenty of unanswered questions. The one I am more familiar with also overlap with gravitational and high energy physics. Right now one big question is...

 

What is dark energy?