Selenography – maps of the Moon

Looking at the Moon, you can recognise the spots on the surface with the naked eye, which are termed lunar maria and have always been inspiring people’s imagination. It is actually molten rock that rose to the surface during the origin of the Moon and then hardened. If looked at closer and using a telescope as an aid, you are able to make out mountains and valleys and a large amount of craters. In short: they are landscapes that give our Moon its face.

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The Moon in »Space Oddity« by David Bowie

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The song »Space Oddity« by the British musician David Bowie (1947–2016) made history. Bowie’s inspiration for this piece composed in 1968, was the science fiction classic »2001: A Space Odyssey« by Stanley Kubrick.

It tells the fictional story of the astronaut Major Tom, who leaves his spacecraft during a flight through space and says his farewell to the people. The last four lines of the lyrics also mention the Moon:

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With the car on the moon

When Neil Armstrong became the first human being that set foot on the moon within the scope of the Apollo 11 mission in 1969, he said the famous words »That’s one small step for (a) man … one … giant leap for mankind«  and hence erected a monument for this historic move. Rarely in history, did the success of human research and development work, condense so impressively in just one moment.  

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»The Buried Moon«

We are tapping again into the treasure chest of Old English stories and have come across the fairy tale »The Buried Moon« or »The Dead Moon«. This piece was published by the Australian historian Joseph Jacobs in 1894, as part of a fairy tale collection, but its origin lies much further back like so many folktales, and has been passed down by word of mouth over the centuries.

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Moon trees

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Even though the idea would be wonderful: this is not about trees that grow on the Moon, but about trees on Earth that grew from seeds, which orbited the Moon exactly 34 times, in a small canister, during the Apollo 14 mission in 1971. For this joint project by NASA and USFS (US Forest Service), the astronaut Stuart Rosa took hundreds of tree seeds with him on this journey. Seeds of five different species of tree had been chosen: loblolly pine, sycamore, sweetgum, redwood and douglas fir. The seeds survived the weightlessness and also when the canister that contained the seeds, got destroyed in the vacuum of the decontamination chamber. The seeds had to be picked up individually after this incident.

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Moonquakes

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By analogy with earthquakes on the Earth, there are so called »moonquakes« on the Moon. By that, we are referring to tremors on the Moon. The astronauts of the five Apollo missions in 1969 to 1972, left seismographs on the Moon, to measure these seismic waves. Afterwards, all data had been sent back to Earth until 1977 and analyzed.

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Lunula – Little Moon

After we have already mentioned the lunate bone, one of the eight human carpal bones, which has been named after the Moon, due to its sickle shape, we would like to take another look at the human hand – this time at the fingernails. Lo and behold: here too, the name was inspired by the Moon. The white area of the nail, shaped like a half-moon is called »lunula« (lat. little moon) and incidentally, can be found on toenails as well. The lunula is differently pronounced with every human being, with some you may only see it on the thumb, with others you can see it on all fingers and toes.

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Nightly paintings with Petrus van Schendel

We had already told you about the paintings of romanticism by German painters Caspar David Friedrich (1774–1840) and Philipp Otto Runge (1777–1810). And also the English painter William Turner (1775–1851) had the moonlight in his mind. Here we are looking at the next generation and find the Dutch-Belgian artist Petrus van Schendel (1806–1870), whose speciality were the nightly moonlight sceneries. What distinguished him from his predecessors and colleagues, was that it were precisely those depictions of nightlight, which brought him fame and not an insignificant financial success (which was not a given for many painters).

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Every full moon has its name

The full moon has always been a companion through time, through months, through seasons and the entire year. In the early days even more so, because daily life of people had not been strictly ruled by the clock yet. It was the sun that determined the day and the moon that brightened the night. Nowadays, clock and calendar are our time scales, which is advantageous but also contains a dark side. You unlearn more and more to estimate time periods and to experience them consciously. We have almost forgotten to perceive how different  a full moon feels like in December compared to a full moon in July …

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The libration of the Moon

Who believes to see a staggering Moon at night, has probably had a drop too much, although a staggering movement of the Moon actually exists in astronomy. This is called »libration«,  but happens very slowly and is therefore only visible by the naked eye in time-lapse photography.

The Moon orbits around the Earth in a so called synchronous rotation. This means that it always faces one hemisphere towards the Earth, while the reverse side of the Moon is not visible from Earth. Due to certain physical conditions (relating to orbits, angular velocity, centres of mass, among others), what happens is that the visible surface of the Moon varies slightly during the course of the moon cycle, and there is a gentle change of inclination of the Moon’s axis or it appears to turn a little.

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