The song from the album 'The Dark Side of the Moon' by the legendary British band Pink Floyd 'There is no dark side of the moon in reality. In fact, it's completely dark and popular all over the world. But the language of poetry and science is not always the same. No matter what this song may mean to us, astronomers have recently discovered the dark side of the moon. The British newspaper The Guardian reported.
One side of the moon looks dark because it does not receive direct sunlight. However, the light reflected from the earth falls on that side of the moon. But to see that aspect, there has been a debate for a long time about what color it is. A team of international astronomers recently reported that the dark side of the moon is ‘Turkish’ in color, meaning a lot of bluish-green or turquoise.
The team of astronomers has been conducting the study for two years by installing powerful telescopes and cameras at the Mauna Lua Observatory in Hawaii, which is run by the US National Oceanic and Atmospheric Administration. They found that when the blue light reflected from the earth fell on the moon, that part of the moon actually looked bluish-green or Turkish.
The best time to understand this color is when the new moon rises, the researchers said. Peter Theil, one of the astronomers at the Danish Meteorological Institute and one of the first authors of the report, explained the matter. He said, "The light of the sun is hitting the earth, when it is reflected from the earth, this light is carrying the color of the earth, it is being reflected to the moon and then coming back to us."
Peter Theil added that in the picture of Earth from space, it is clear that our planet looks blue. The astronauts also said that they saw the earth standing on the moon like a blue marble. When the sun's light is reflected from the earth with blue color and falls on the moon, it becomes very dirty and comes back. And then in that light we see that side of the moon bluish-green.
Scientists used two different color filters to take pictures of the moon at different times. They see a special ‘hello’ or a glimmer of light in two pictures of the decaying curved moon taken on January 17, 2012. By analyzing the pictures, they are sure about the color.
This is the first accurate color measurement of the dark side of the moon, says scientist Theil. The last such attempt was made in 1985 at an observatory in Bloemfontein, South Africa. He thinks that this observation of the dark side of the moon can be used to calculate the color of the earth. He said that research on climate change could also benefit from this.
This research report by Peter Theil has been adopted for publication in the scientific research journals Astronomy and Astrophysics.