Zothecula writes: After entering orbit around the Moon at the start of the year, NASA’s twin GRAIL (Gravity Recovery And Interior Laboratory) probes, Ebb and Flow, have completed their primary mission to study the Moon’s interior structure ahead of schedule. Operating around the clock since March 8, NASA says the spacecraft have provided unprecedented detail about the interior structure and evolution of the Moon and the data they have gathered will provide insights into how Earth and its rocky neighbors in the inner solar system developed.
"Security is mostly a superstition. It does not exist in nature... Life is
either a daring adventure or nothing."
-- Helen Keller