The first artificial solar eclipse.

Humans are even creating artificial solar eclipses, the European Space Agency has just achieved this unprecedented milestone, they used two satellites flown and trained and the objective was to observe and record details of the solar corona as never seen before, the mission is called proba-3 and it works like this: One of the satellites carries a shield that blocks the intense light of the sun, while the other satellite positioned exactly 150 m away plays the role of a giant camera, capturing ultra-detailed images of the solar corona, that region of the corona is that faint layer that we can only see from Earth during a total eclipse, which we are honest occurs very few times per decade and only lasts a few minutes, but the proba-3 can repeat an eclipse artificially every 19 hours and last for up to 6 hours followed.

To give you an idea of ​​the complexity, the shadow cast by the blocking satellite is barely 8 cm wide, but it needs to hit the optical sensor of the camera that is 150 meters away, all of this with the system flying at very high speed with a formation control so precise that according to ESA engineers it borders on the impossible according to previous standards of space engineering and the most interesting thing is that the system has already managed to carry out the first alignments autonomously, without the need for manual intervention from the control. terrestrial. The concern about this solar corona is because phenomena such as the solar wind and the feared coronary mass injections originate from it, capable of causing everything from incredible auroras to power blackouts and failures in satellites and GPS systems here on Earth. With the proba-3, scientists can now study this layer with a level of detail never before achieved, feeding space climate models and improving our forecasts about the behavior of the sun.

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