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Interesting facts about space.

One of the findings they found out is that the lunar phases are consistently rotating. They go round and round without ending and every cycle is similar as the previous cycle. As there were no tools or technological devices to remind them of time, prehistoric populace only had the moon to be their guidance in life, besides the mighty Sun. The phase of the moon would indicate the time or month of the year, although it was not implied exactly in the form of months like how we are symbolizing the periodic months. But of course, the use of the moon did differ from one culture to another, one religion to the other.

and here is another

Unfortunately, even though mankind has gone to the moon in 1969, this is still not a simple feat in the 21st century. Most of the know how accumulated during the lunar flights have been lost due to the fact that production facilities have been dismantled and many experts who worked on the lunar missions either have retired or died. Right now, it would be impossible to replicate the Saturn 5 rockets that were used to launch the original Moon Mission. Thus, due to this, it has become impossible to fly to the moon again without some sort of a preparation. Hence, many scientists state that going to Mars is a better option as compared to going to the Moon.

and finally

The exact composition of these bodies of liquid remained unknown until 2014, when the radar instrument aboard Cassini was first used to show that Ligeia Mare, the second largest sea on Titan, is richly endowed with methane. Ligeia Mare is similar in size to two of the Great Lakes on Earth combined--Lake Huron and Lake Michigan! The new study, published in the February 25, 2016 issue of the Journal of Geophysical Research: Planets, which used the radar instrument in a different mode, independently confirmed the 2014 result. "It's a marvelous feat of exploration that we're doing extraterrestrial oceanography on an alien moon," commented Dr. Steve Wall in an April 26, 2016 Jet Propulsion Laboratory (JPL) Press Release. Dr. Wall, who is of the JPL in Pasadena, California, is Cassini radar team deputy lead.

Other facts:

"The growing evidence for water inside the Moon suggest that water did somehow survive, or that it was brought in shortly after the impact by asteroids or comets before the Moon had completely solidified," explained Dr. Li in the July 24, 2017 Brown University Press Release. "The exact origin of water in the lunar interior is still a big question," he added.

Research presented on October 19, 2012, at the annual meeting of the American Astronomical Society's Division for Planetary Sciences held in Reno, Nevada, has suggested a causal relationship between the seven sister moons--Titan and the six mid-sized icy moons of Saturn. The researchers suggest that the seven moons have a violent origin, and came into being when a few considerably larger moons crashed into each other to give birth to the misty, moisty moon, Titan.

New Moon and Full Moon Times. New Moon, June 12, 2010 4:15 am, PDT. Full Moon, June 26, 2010 4:31 am, PDT