We are only at the beginning of research on the universe but we are doing better all the time. A good example for this is the VLT. It enables us to have a better look at the stars that are farther away. With these telescopes you can even see a man on the moon. Of course it is very complicated to produce these telescopes, and especially the mirrors inside. It is hard to believe that it takes about two years to make one of these mirrors, and how precise the work on them is done. For example these mirrors have a difference of 1 mm per 156 km.
The satellites are also very important to us humans on earth. Most of our telephones wouldn't work and there wouldn't be that much communication between the countries on earth. And less comunication would mean less understanding. We also would neither have any navigation system like GPS nor would we have this variety of TV channels. We would never be able to forecast the weather this precisely, and hurricanes, earthquakes and volcano eruptions would become an even more serious problem than they are now, because the people couldn't be warned fast enough. Life on earth would change a lot without our satellites.
All this sounds like a ballad of progress. However, at least on second thought, other aspects of space research cross one's mind. For example that the risk that something might happen to one of the astronauts is also high.
There is a lot of competition on earth between the different countries or different organizations. This has a good side but also a bad one. The good thing about it is that everyone wants to be the best and the fastest in this work. Nevertheless if everybody worked together progress could be achieved much faster. But most humans are too egotistical and want to earn all the fame and fortune for themselves. And there is the problem that every spaceship leaves fuel-tanks and other wastes in an orbit around the earth. The lack of communication between different countries, who are supposed to work together, is also perturbing.
Another question that we might ask ourselves is if all of this effort is worth the money? We could as well invest all the money in the future of the developing countries. All in all we think that exploring space is very important because we couldn't imagine life without the discoveries, that we have made in outer space, any more. And we know perfectly well that the problems of our Mother Earth cannot be solved by money, but only by intelligent solutions.
Last but not least exploring the universe might also help us to find our right position in this world and open our senses for our environment, far and near.
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