When astronomers on Earth use theirtelescopes to search for potentially inhabited exoplanets, they get a series of a wide variety of images. Thanks to advanced telescope equipment, researchers can figure out a huge amount of data about distant celestial bodies. But what if, right now, scientists from other inhabited planets, using exactly the same (or similar) technologies, are studying our planet? How do they see her in their alien telescopes?
How did they observe our Earth?
For starters, scientists from the NASA lab took about10,000 Earth images taken by the NASA Deep Space Climate Observatory (DSCOVR), which was at the point of gravitational balance between the Earth and the Sun. The point of gravitational balance, if you do not go into details and astronomical calculations, is a point between two celestial bodies, which allows you to constantly see only one side of the studied object. In this case, DSCOVR constantly observed only the daytime side of the Earth. Pictures were taken with a frequency of 1-2 hours in the period from 2016 to 2017.
But, as you know, the distances between the Earth andThe sun is not enough, since the observed exoplanet (in this case, the Earth) should be at a distance of several light years. Otherwise, it is not possible to understand how hypothetical aliens see it. Therefore, scientists have scaled down images several times to simulate a distance of several light years.
See also: What kind of aliens can be?
Next, comparing the images with the originals, scientistsidentified the parameters that most characterize certain parts of the planet like the seas, oceans and continents. As a result, the silhouettes of Africa, Asia, and North and South America can be distinguished in the final image as a whole. And what do you see in the image below? Share your opinion in our telegram chat.
We present you the first two-dimensional mapEarth’s surface, as it could be observed from a distance of several light years, the researchers say. The data obtained will help in further research on the search for potentially inhabited exoplanets.
In fact, in addition to very interestingfrom the point of view of the science of experiment, compiling such an image of our Earth will help in further research. For example, some features and patterns that can be identified between a map and a real planet can serve as reference points for finding land, seas and the atmosphere on distant planets. So, in the image available above, the black lines are the alleged contours of the continents, which have a similar appearance to reality. That is, having more detailed landmarks, the chances of finding a habitable (albeit distant) planet are increasing. But for now, these are only assumptions.