In spring we look directly out of our home galaxy: We find the Milky Way close to the horizon at midnight. On our map, she runs through the constellations Einhorn, Fuhrmann, Perseus, Kassiopeia, Kepheus and Schwan from Southwest via northwest to the northeast. Only at very dark and vapor -free locations, in the high alps, can you perceive the glimmer of the Milky Way stars just above the horizon. On the other hand, if you look at the rest of the sky, for example for the lion, the large bear, the bear keeper or in the direction of the water snake, we only see a few maid of milk and behind the apparently endless, almost empty intergalactic space. This is optimal for astrophysicists, especially if you are interested in the large widths and the composition of the universe as a whole – i.e. for cosmology. The larger your telescopes and sophisticated the observation techniques, the further your gaze. And so they sometimes discover things that should not exist from the perspective of modern cosmologists. Too large for the cosmological principle at the end of 2012: At that time, a team around Roger Clowes from the University of Central Lancashire in England examined an extraordinary group of quasar – so that the constellation of Löwe – so that are extremely luminous Kerne Active Galaxia When large quantities of gas and entire stars fall into the throat of a supermassed black hole and are heated to millions of degrees. Quasars are so bright that you can still see them with telescopes from the earth if the remaining galaxies were already too light. In this case, there were 73 quasare that seemed to be at a distance of nine billion light years. There they form a structure of around four billion light years in length-the “Huge Large Quasar Group (Huge-LQG)”, which in German means something like “huge large quasar group”. LQGS are probably the predecessors of the galaxy clusters in the nearby universe. But the Huge-LQG is different-when publishing the work, it was the largest coherent mass accumulation found in the universe. The starry sky on April 15, 2025, 11 p.m. Mezdpa graphics 108686 (Sieber Heaven Year’s Source)/processing FAZ-Grafik Sieberda’s problem: It was so great that it seemed to be violated by the cosmological principle. This says that the universe on large scales looks the same everywhere and that the matter should be more or less distributed in it, no matter where you look – as long as you only look far enough away. And the Huge-LQG is far enough to lift this principle from the fishing-just like a 300-meter tree in a forest of ten meters high trees is too large to go through as a statistical outline. The entire model of the big bang and everything that came afterwards is based on it. To this day, the scholars still argue about the find: sometimes it was said that the group of the group was not all together, sometimes that all objects are not quasare. But when only a few months later, other astronomers found a twice as large structure from Galaxies with the “Hercules Corona Borealis Great Wall”, the cosmological principle was even more pressure. And that is still: Both structures, the “huge large quasar group” and the “large wall”, have since been either contested or confirmed by many competing studies. Some theorists argue that the cosmological principle may be less strict and that structures such as these could actually exist without conflict. Perhaps the European Euclid satellite will soon deliver the solution: it is designed to examine the largest structures of the cosmos. He has just delivered his first scientific data. However, it takes until the end of his mission until the end of the decade. Sternguckers cannot understand all of this with their own eyes. However, if you look at the east and southern sky decorated with Hercules, Corona Borealis (the northern crown) and lion, you should be aware that there is a cosmological crisisherd behind these inconspicuous constellations. The spring sky is a planet-free von crises, but on the retreat the planets of our solar system: Jupiter in the bull. I only shine steamed by the twins. The spring sky is free of planet: its brightest objects are regulus in the lion – the “point” of the converted question mark of the lion head – Spica in the virgin and arcture in the bearer, the brightest star of the heavenly north hemisphere. In the northeast, two bright summer stars can already be seen with Wega and Deneb. However, it still takes a while before you take over the regiment. There, the four -day, increasing moon covers the pleiaades’ star clusters, the famous seven -scale. Five of his brightest members (Electra, Merope, Alcyone, Atlas and Pleione) will disappear from around 10:50 p.m. in the course of a little more than an hour on the dark margin. Pleiad cover offers a good opportunity to convince yourself of the movement of our natural earth companion in the fixed star sky: it takes place eastwards, i.e. from right to left. The narrow crescent moon does not overshoot the Pleiad stars, so that binoculars are sufficient as a observation instrument. When Elektra occurs, however, the moon is only 13.5 degrees above the horizon. Pleione and Atlas only disappear just before the end of the lunar. Sun: April 1st, sunrise 7.02 a.m., sunset 7:58 p.m.; April 30, sunrise 6.03 a.m., sunset 8.43 p.m. Moon: April 5, 4.15 a.m.: First quarter; April 13, 2.22 a.m., full moon; April 21, 3.36 a.m., last quarter; April 27, 9:31 p.m., Neumond.
