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“If quantum mechanics hasn’t profoundly shocked you , you haven’t understood it yet,” said physicist Niels Bohr. The more we delve into the cosmic weirdness of quantum mechanics the stranger the world becomes. A state of quantum superposition is being in more than one place, or more than one state, at the same time –a single event can be happening both here and there, or both today and tomorrow. Caltech’s great theoretical physicist, Nobel Laureate Richard Feynman, was fond of noting that the ‘paradox’ of quantum mechanics is only a conflict between reality and your feeling of what reality ‘ought to be’. ....
Tomorrow, Monday, December 21, Jupiter and Saturn will align in a “great conjunction,” appearing as close and as visible to be able to see both the rings of Saturn and the Galilean moons of Jupiter –Io, Europa, Ganymede, and Callisto–at the same moment since 1226. The two planets will align close enough to become what is known as the “Christmas Star.” The last time this celestial event occurred was on March 4, 1226, an event believed to be the basis for the earlier “Star of Bethlehem” in the nativity story of the Gospel of Matthew that guided the Three Wise Men to Christ’s birth. 1226 was the year Francis of Assisi died, and Genghis Khan and his Golden Horde –believed named after their yellow tents– swept across the plains of Asia. ....
Harvard astrophysicist Avi Loeb says that advanced extraterrestrial life is less speculative than dark matter or extra dimensions, or, as Scientific American observes, it’s never aliens, until someday, it is. The Guardian leaked the news that a “tantalizing” radio signal, BLC-1, appears to have come from Proxima Centauri, the closest star to the sun at just 4.2 light-years. The signal was detected in archival data gathered last year by the Breakthrough Listen team using the Parkes radio telescope observatory, located 20 kilometers north of the town of Parkes, New South Wales, Australia in its searching for signals of radio-transmitting extraterrestrial civilizations in our Galactic neighborhood that are too narrow and well-defined to result from natural processes. ....
Scientists are rethinking where life originated on Earth, reports Science –Rather than springing up from the sea, the first biological cells may have formed on land, Nature reports. Water is essential to life, but it also breaks apart molecules like DNA and proteins, a paradox that has long puzzled scientists. Now, researchers propose, life may have formed on bodies of water on land perhaps formed by craters, like Canada’s Manicouagan Reservoir where there was intermittent availability of water as well as enough UV radiation from sunlight. Algorithms for Love: Japan Will Soon Launch an AI Dating Service, reports Singularity Hub –Every year for the last 13 years, Japan’s population has shrunk. The country has one of the lowest birth rates in the world, and not enough babies are being born to replace an aging population; Japan also has the highest proportion of people over 65 of any country in the world. The Japanese gov’t has a hopeful solution. ....
In 2020, astronomers using NASA’s Hubble Space Telescope watched a mysterious dark vortex wider than the Atlantic Ocean on Neptune abruptly steer away from a “likely death” on the giant ice planet, some 30 years after NASA’s Voyager 2 probe flew past in 1989 after a nearly 3-billion-mile odyssey, snapping images of two giant storms brewing in Neptune’s southern hemisphere. NASA scientists dubbed the storms “The Great Dark Spot” and “Dark Spot 2.” Five years later, Hubble revealed both the Great Dark Spot and the smaller Dark Spot 2 had vanished. Or so they thought Hubble first observed he formation of a Great Dark Spot on Neptune in 2018. Like Jupiter’s 350-year-old Great Red Spot, Neptune’s Great Dark Spots are storms that form in areas of high atmospheric pressure. Scientists have seen a total of six dark spots on Neptune over the years. Voyager 2 identified two storms in 1989. Since Hubble launched in 1990, it has viewed four more of these s ....