Starship Asterisk*

I am an elementary school teacher and was struck by the comment that Neptune is never seen as a crescent-shaped figure from Earth. I had never thought about this, so would this be true for all planets beyond Earth's orbit? Thanks, Scott Scott, Phases require the planetary body to pass between the s...

I like this number as well, the estimated total number of atoms in the observable universe :twisted: http://en.wikipedia.org/wiki/Atom Atoms in the universe and our world Using inflation theory, the number of atoms in the observable universe can be estimated to be between 4×10^78 and 6×10^79 . Howev...

Congrats!

:D Hi, Im here In Sydney, Australia, and Im just starting out with this... are there any people here from Australia? or any others with some advice on what to look out for from this side of the planet? :lol: regards Gareth I'm not from Australia but here is a great place to start if you want to che...

For what it's worth: http://www.physics.utah.edu/~cassiday/p1490/arecibo_message.html makc, the message was sent as part of a test of the new capability of the telescope so no money was "wasted" in this effort. Something would have been broadcast as part of the test and they decided to mak...

I apologize for the long post but some people can't wade through 13 pages: ...In short, in an order of magnitude calculation, it appears that this object is likely in a GTO (geosynchronous transfer orbit). The large size and slow motion make it an ideal candidate for the fuel dump theory... I have n...