A probe is an unmanned flying object, which explores space. Different to a satellite, a probe does not circle the Earth but flies to other celestial bodies, which they circle, too, but are then called orbiters. Two of these probes have been on the way to the Moon since 10th September 2011, to take measurements with unprecedented accuracy. The GRAIL lunar probes have reached the orbit of the Moon as planned, at the turn of the year 2011/12 and are now currently at work, until they will shatter on the Moon’s surface. In the meantime, they will have transmitted lots of data back to Earth. [read more]
The new moon is the opposite pole to the full moon, being the time when the Moon is not visible in the sky to us people. Maybe this is why we pay less attention to it, because what you don’t see is less prevalent in our awareness.
However, there is one aspect, which continues to lend significance and fascination to the new moon. It is the word »new« and the described moment of renewal and of a new beginning. This word can be found in different languages:
This is about how to differentiate the waxing moon from the waning moon in the sky. »Waxing« is known to be the lunar phase between the new moon and the full moon (meaning the time when the crescent increases in size), whereas »waning« is known to be the lunar phase between the full moon and the new moon (the time when the crescent decreases in size). In order to remember on which side the curve is, here are some neat mnemonics. [read more]
As is generally known, the moonlight is actually sunlight reflecting from the surface of the Moon and reaching us here on Earth. You ask yourself the question, whether the moonlight may have a different colour than the sunlight, especially since a nightly scenery usually appears to be bluish. Also movie scenes, are portrayed in blue and so are many pictures and photographs. We would like to forestall the answer: the moonlight is nearly white. The night appears blue due to other reasons. [read more]
It is well known the tides are caused by the tidal forces that are formed through gravity between the Earth and the Moon (and also between the Earth and the Sun). To put it simply, you can say that the Moon moves masses of ocean waters. At the full moon and the new moon, the Sun, the Moon and the Earth are roughly in alignment, hence, the forces are greater and cause so called spring tides, thus a slightly higher tide. Now, many people conclude that the Moon – and in particular the full moon – ought to move and influence us people accordingly, because our bodies consist mostly of water. This claim contains several errors in reasoning, which we would like to explain in the following. [read more]
When natural forces are involved, people are mostly torn between fear and fascination. They are looking for the challenge to come into contact with these forces. At the same time, everyone has to respectfully recognize these elemental forces, sooner or later. This becomes impressively apparent in surfing, when a person is gliding on a metre high wave on a surf board. If he manages to stay in front of the crest, and not to be rolled over by the breaking of the wave, he is the winner and in the belief to control the element. If he is not able to do so, it mostly turns dangerous or at least uncomfortable. It is a risky game. [read more]
This disk, made of bronze and gold, with an age of around 3,600 years, belongs to the oldest find representing astronomical phenomena and thereby depicting planets and stars in the sky. It is thus of great value, because it is evidenced that people of the Bronze Age (2200-800 BC) did not only possess manual skills to create such a refined metal disk, but above all, had the knowledge about astronomical processes. They observed the celestial events with the naked eye and portrayed this in an artistic form. [read more]
As a general rule, we live our secular life by a so-called solar calendar, the Gregorian calendar, which determines our calculation of time since the end of the 16th century. The biggest advantage of a solar calendar is its connection to the seasons: it is warm in summer, cold in winter, at least this is how it should be … at times however, as we all know, the weather goes crazy and sunshine is long-awaited in summer and snow stays away in winter. The seasons are connected to the (solar) calendar months. [read more]
Everyone knows that about once a month is full moon … but, strangely enough, full moon is always on a different day each month and always at a different time. The reason is that the moon month is shorter on the average, than the calendar month. Without being to mathematical, one can say that a moon cycle lasts approx. 29.5 days. This is how the time of full moon spreads irregularly throughout the calender months and it happens (about every 2.5 years) that two full moon dates fall onto the same month, one at the beginning and one at the end of the month. This second full moon is called »blue moon«. [read more]
On Wednesday, 15th June 2011 (or Thursday 16th June for certain time zones) is full moon and a total lunar eclipse at the same time. However, it will only be completely visible in the Near and Middle East. In Asia and Australia, the moon will be already set and in Europe and Africa, the moon will be just rising by the time the lunar eclipse takes place. In America, this event won’t be visible at all. [read more]
