Looking towards the night side of Saturn. Click for a larger version. Image Credit: NASA/JPL/Space Science Institute Kind of an interesting photo from the Cassini spacecraft.  The spacecraft was looking towards the night side of Saturn.  The moon...

Sometime around 1933, astrophysicists figured out there wasn’t enough mass in the universe.  About 400 times not enough mass in the universe.  For about 40 years, this was known as the “missing mass problem”. While on the surface it might seem that...

Click here to view the embedded video. Here’s a video to start Marian off on her task of rewarding Bruce on his correct answer of yesterday. Source

Update:  SOLVED!! How about a riddle for your Saturday?  I’ll give you some clues, and then post the answer in the comment section tomorrow morning (or sooner, if someone guesses the correct answer).  To be fair to everybody, the answer will be...

Image:  NASA/JPL/Space Science Institute  –  Cassini Cassini has weathered its Nov 2, 2009 flyby of the Saturn’s moon, Enceladus, in good shape.  The flyby placed the spacecraft at about 100 km (60 miles) above the surface of Enceladus at its...