The twin spacecraft of NASA's GRAIL mission are orbiting lower and lower around the Moon as I write this. Ebb and Flow will impact an unnamed lunar mountain at 2:28p.m. PST today. Read More About It here: http://science.nasa.gov/science-news/science-at-nasa/2012/13dec_grail/.
You can tune in to NASA for a briefing today starting at 2 p.m. PST to follow events http://www.jpl.nasa.gov/news/news.php?release=2012-398b
Apollo 17 left the Moon 40 years ago - it is time to go back to the Moon. More on that tomorrow.
Sky Guy in VA