Astronomers have observed huge stars disappear briefly behind celestial bodies of unknown origin
It will take 40 years to complete a transformation that normally takes millions or even tens of millions of years. Comet 2019 LD2 (ATLAS) photographed by the Hubble Space Telescope. Hubble Space Telescope/Bryce Bolin A comet named 2019 LD2 (ATLAS) is migrating from one small group of celestial bodies to another.
I am not a major in economics, and I don’t dare to talk nonsense if I don’t understand it, but I still know the truth that”things are rare and expensive”. Rare metals such as gold and silver have become hard currencies since the establishment of an economic system. No matter how turbulent the world is, it is difficult to affect their status. In the final analysis, their reserves are”moderate” and can play this important role.
In 1977, scientists discovered a small celestial body between the orbits of Jupiter and Neptune and named it Chiron, a half-man and half-horse character in Greek mythology.
Therefore, scholar Bouvard proposed the”perturbation body” conjecture-that is, there is a massive celestial body outside the orbit of Uranus affecting the movement of Uranus. After decades of hard work, in 1846, French astronomy teacher Auburn Levier, independently calculated the position of this”perturbation body”, which is Neptune, and observed it at a position less than 1° from the prediction in the same year. Arrived Neptune.
In the universe, not all planets are as lucky as the earth, able to revolve around their host star, gaining light and heat. Scientists’ research shows that there are still many wandering planets in the universe. They have no companions and shuttle through interstellar space alone.
How hard is it to lose weight? Anyone who has tried it knows that if you are lazy, you may rebound. Today (22nd) the reporter learned from the Purple Mountain Observatory of the Chinese Academy of Sciences that Chinese and foreign scientists have discovered that a celestial body far away from the edge of the solar system has taken several years to finally lose weight.