ANDY

Uranus's tilt is 98°. Astronomers (many of them) still consider its rotation to be prograde (west to east) even though it is tilted a good 8° below the plane. This would mean its north pole is 8° below the plane, and the south pole 8° above the plane. Many others consider the opposite: its rotation is retrograde having a tilt of 82°, and the north pole would therefore be above the plane (sort of like Venus with an extreme tilt) which would look more correct to the standard order. 

My question is, why can't astronomers decide what this magnificent large planet be? A prograde or a retrograde? This creates nothing more than confusion among scientists.

Your opinions please.

I installed the new version a couple of weeks ago. The site comes on automatically as soon as I turn my computer on. How can I choose to get into Messenger when I want to,and not when it wants to? Thanks.

I come from Astronomy and Space. I saw this problem in a magazine and believe I got the right answer. I'd like to know if any of you could confirm. I will not give you my answer, though, in order not to facilitate your finding the solution. Here goes : If x and y are positive integers, which of the following is equivalent to (2x)^3y - (2x)^y.

A. (2x)^2y

B. 2^y(x^3 - x^y)

C. (2x)^y( (2x)^2y - 1 )

D. (2x)^y(4x^y - 1)

E. (2x)^y( (2x)^3 -1 )

They say that matter, like energy, is neither created nor destroyed. But aren't living creatures created and, therefore, new matter is always produced?