What are the top ten unsolved mysteries of the universe?

There are many unsolved mysteries of the universe: Where is the center of the universe? The expanding balloon theory of the center of the universe; The size of the universe; The vastness of the universe; The boundaries of the universe; Humanity’s understanding of the universe; The size of the infinite universe; The state and appearance of the universe Hawking's point of view The small ball says that the uniform universe is limited and boundless The color of the universe Detecting the color of the universe Collecting opinions The fate of the universe The forces in the universe Super big explosion The "ruler" of the sky The prediction of the universe The secret of energy Energy fills the hole in the "cosmology" Physics is once again facing drastic changes. Who can explain the secret energy "cosmic bullet"? The biggest unsolved problem in physics. The observatory plans to reorganize the future human life stage. The Dison plan of the solar system. The ring world, the disk world, the end of the universe, the future of the universe. Destiny Big Bang Theory Uncertainties The Future of Humanity Missing Stars Found Golden Guardians The Universe Will Get Darker The Guardian Report Star Destiny Black Galaxies Black Galaxies Keep Looking Up The Starry Sky Is Black But Not The True Face of the Dwarf Sun Who built the photospheric chromosphere grotto? The corona layer. The power of the solar wind. The origin of the solar system. Nebula theory. Catastrophe theory. Capture theory. The illusion of the sun. The "false sun". The cause of the wonders. The mystery of the missing solar trinos. What is the neutrino pair? The study of neutrinos captures the mystery of the new member of the solar system. The mystery of the mysterious star. The material of the dwarf planet. The origin of the moon. Split theory, capture theory, homology theory, spacecraft theory. "Buildings" on the moon. Traces of artificial transformation. Mysterious discovery site on the moon. The power of external intelligence The mysterious magic of the moon The influence of the waxing and waning of the moon on human emotions The relationship between the power of the moon and women's childbirth Detection of questions left by the moon Moon mist bridge-shaped buildings Moon "pyramids" Moon caves The birth of the earth Several hypotheses about the birth of the earth: Kant-Laplace hypothesis How does the earth face the disaster of extinction? Yan Jun's real-life meteorite threat is "a ray of hope". Mysterious space signals are inexplicable. Exploring the "heavenly book" that is difficult to decipher. Searching a diary about aliens in an all-round way and unexpectedly discovering the contents of the diary about aliens. Aliens. The physical evidence left behind, mysterious alien Wenning, alien metal pieces, strange alien metal, alien objects, alien metal objects, alien white egg rows, alien gifts, alien black stone fire, alien cakes, alien base mystery, Mars, Venus Status of Jupiter Alien distress signal Astronomer's evaluation Alien radio waves Alien messages TV programs from alien planets Alien TV programs Experts' conclusions UFO mystery Luminous objects Disk-shaped objects "meteors" Several other incidents Incidents, the messenger who saved life on earth, the encounter of the mage, the alien's prophecy, the alien's prophecy, the UFO at the Ketman base, the strange object chasing the unidentified object, the death of Mantru, the truth, the magical flying saucer incident, the hypnotic UFO, aliens, people Debate about green light bodies, a rough start, UFOs and aliens and aliens, what happens next, visiting UFOs, mysterious massacres, horse killings, investigation launched, Klim's Adventures, round flying balls, later Klim's UFOs During his trip to China, the poet encountered a huge flying saucer. An orange-red flying object. The devil descended on Moscow. A woman's cry. Four luminous flying saucers. Round holes in the windows of the flying saucer. The Soviet army once competed with aliens. Egg-shaped flying saucers. The mysterious phenomenon of flying saucers. Contents of Martian warning slogans: Martians' intentions; alien test subjects; aliens and silver craft; long minutes; abductee; identity of "Men in Black"; "Men in Black", who come and go without a trace; everywhere "Men in Black" Reappearance of "Men in Black" UFOs over the Bermuda Triangle "Ghosts" of Bermuda Exploring Bermuda They were followed by UFOs The Fay family's encounters UFO chilling ghosts UFOs "patronized" African eyewitness testimonies Einstein's reaction to the appearance of UFOs The Department of Defense "wakes up" to the suggestion that the U.S. military and UFO UFOs walked into the Chevrolet of Chiron, New Mexico and discovered alien alien UFOs