Science (General/Chat)
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Explanation: Jewels don't shine this bright -- only stars do. And almost every spot in this jewel-box of an image from the Hubble Space Telescope is a star. Now, some stars are more red than our Sun, and some more blue -- but all of them are much farther away. Although it takes light about 8 minutes to reach Earth from the Sun, NGC 1898 is so far away that it takes light about 160,000 years to get here. This huge ball of stars, NGC 1898, is called a globular cluster and resides in the central bar of the Large...
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Explanation: What are those colorful rings around the Moon? A corona. Rings like this will sometimes appear when the Moon is seen through thin clouds. The effect is created by the diffraction of light around individual, similarly-sized water droplets in an intervening but mostly transparent cloud. Since light of different colors has different wavelengths, each color diffracts differently. Lunar coronae are one of the few color diffraction effects that can be easily seen with the unaided eye. The featured image of a lunar corona was captured around last week's full Super Moon from near Knight's Ferry, California, USA. To the...
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Pecunia non olet: Money Does Not Stink atqui ex lotio est: yet it comes from urine Monkey Closets: a History of Public Restrooms | 20:16 The History Guy: History Deserves to Be Remembered | 1.61M subscribers | 99,506 views | September 15, 2025
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From the island of Kekova, off the southern coast of Turkey, renowned underwater archaeologist Hakan Öniz takes viewers on a journey through the underwater wonders of Turkey. Turkey's Island of 400 Ancient Shipwrecks The SpeciaList | BBC | 4:04 BBC Global | 717K subscribers | 32,063 views | November 24, 2024
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I see stupid people. Not the harmless kind who get lost in the Walmart parking lot, but the ones who descend on public hearings like a flock of caffeinated pigeons, clutching reusable water bottles and muttering dark omens about “produced water” as if it’s the name of a demon summoned from an oilfield hellmouth. These are the people who read three paragraphs of a conspiracy blog and suddenly believe the periodic table is a government psyop. The sight of a chemistry diagram sends them into full fight-or-flight, usually choosing “rant.” Meanwhile, outside their fluorescent echo chambers, New Mexico is cooking...
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Explanation: Awkward and angular looking, Apollo 17's lunar module Challenger was designed for flight in the near vacuum of space. Digitally enhanced and reprocessed, this picture taken from Apollo 17's command module America shows Challenger's ascent stage in lunar orbit. Small reaction control thrusters are at the sides of the moonship with the bell of the ascent rocket engine underneath. The hatch that allowed access to the lunar surface is seen at the front, with a round radar antenna at the top. Mission commander Gene Cernan is clearly visible through the triangular window. This spaceship performed gracefully, landing on the...
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Explanation: Jupiter looks a bit different in ultraviolet light. To better interpret Jupiter's cloud motions and to help NASA's robotic Juno spacecraft understand the planetary context of the small fields that it sees, the Hubble Space Telescope was being directed to regularly image the entire Jovian giant. The colors of Jupiter being monitored go beyond the normal human visual range to include both ultraviolet and (not pictured) infrared light. Featured from 2017, Jupiter appears different in near ultraviolet light, partly because the amount of sunlight reflected back is distinct, giving differing cloud heights and latitudes discrepant brightnesses. In the near...
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BREAKTHROUGH: Nattokinase DISSOLVES 84% of amyloid microclots within 2 hours in-vitro — a pathology recently found in 100% of COVID-19 vaccinated individuals tested. This enzyme breaks down BOTH the trigger (spike protein) AND the pathological result (amyloid microclots). ALSO SEE https://x.com/NicHulscher/status/1990480242327118185
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Roman Amphora were discovered in 1975 buried in the sediment deep in the bay of Rio de Janeiro. Renowned scientists Sir Robert Marx, Dr. Harold Edgerton, Dr. Elizabet Will and I believe the Romans may have arrived in the New World over a thousand years before Columbus, and we are out to prove it. Mystery of the Roman Amphora in Rio de Janeiro Bay | 2:38 | 802 subscribers | 1,056 views | August 7, 2021 Bay of Jars Robert Marx [YouTube search]
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Scientists have reversed Alzheimer’s disease in mice, potentially showing a pathway to treat the illness among humans, according to a Dec. 22 peer-reviewed study published in the Cell Reports Medicine journal.Alzheimer’s is traditionally considered irreversible. In the study, researchers treated two groups of mice with P7C3-A20, a pharmacologic agent. One group carried human mutations related to amyloid processing, while the other carried a tau protein mutation. Both amyloid and tau pathologies are two major early events of Alzheimer’s. Researchers say that as mice develop brain pathologies resembling Alzheimer’s, they are ideal subjects to test how P7C3-A20 affects Alzheimer’s in humans....
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Explanation: Attention grabbing interstellar visitor 3I/ATLAS made its not-so-close flyby of our fair planet on December 19 at a distance of 1.8 astronomical units. That's about 900 light-seconds. This deep exposure captures the comet from another star system as it gently swept across a faint background of stars in the constellation Leo about 4 days earlier. Though faint, colors emphasized in the image data show off the comet's yellowish dust tail and bluish ion tail along with a greenish tinged coma. And even as it is scrutinized by arrays of telescopes and spacecraft from planet Earth, 3I/ATLAS is headed out...
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Explanation: What was so super about Wednesday's supermoon? Last week, a full moon occurred that appeared slightly larger and brighter than usual. The reason is that the Moon's fully illuminated phase occurred within a short time from perigee - when the Moon was its closest to the Earth in its elliptical orbit. Although the precise conditions that define a supermoon vary, last Wednesday's supermoon was surely the closest, largest, and brightest full moon this year. One reason supermoons are popular is because they are so easy to see -- just go outside at sunset and watch an impressive full moon...
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A tour of the agora and acropolis of ancient Sparta. The Ruins of Sparta | 6:46 Scenic Routes to the Past | 48.8K subscribers | views | December 12, 2025 0:00 Introduction 1:24 Agora 3:12 Acropolis 5:06 Temple of Artemis Orthia
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Explanation: A star forming region cataloged as NGC 2264, this beautiful but complex arrangement of interstellar gas and dust is about 2,700 light-years distant in the faint but fanciful constellation Monoceros, the Unicorn. Seen toward the celestial equator and near the plane of our Milky Way galaxy, the seasonal skyscape mixes reddish emission nebulae excited by energetic light from newborn stars with dark interstellar dust clouds. Where the otherwise obscuring dust clouds lie close to the hot, young stars, they also reflect starlight, forming blue reflection nebulae. In fact, bright variable star S Monocerotis is immersed in a blue-tinted haze...
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Explanation: Does the road to our galaxy's center go through Monument Valley? It doesn't have to, but if your road does -- take a picture. In this case, the road is US Route 163 and iconic buttes on the Navajo National Reservation populate the horizon. The band of Milky Way Galaxy stretches down from the sky and appears to be a continuation of the road on Earth. Filaments of dust darken the Milky Way, in contrast to billions of bright stars and several colorful glowing gas clouds including the Lagoon and Trifid nebulas. The featured picture is a composite of...
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...for over two millennia, the great civilizations of the Mediterranean... possessed copper in abundance. They had gold, timber, and grain... What they did not have was tin... in the early centuries, tin came from... Central and South Asia, from the Zeravshan Valley in what is now Tajikistan and the Hindu Kush in Afghanistan... By the Late Bronze Age, the kingdoms had turned to the sea... In 1982, a sponge diver off the coast of Grand Cape in Turke... found what came to be known as the Uluburun shipwreck... mostly, it carried metal. There were ten tons of copper, in the...
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Diamonds aren't just for jewelry. From their cosmic origins in dying stars to their formation deep within the Earth, these gems possess unique properties that could revolutionize our world. This documentary uncovers the science behind both natural and man-made diamonds, exploring how scientists are creating "super diamonds" that are tougher and more efficient than anything found in nature. Discover how these new diamonds could replace silicon in our electronics, power space exploration, and usher in a new technological age. How This Gem Could Be The Future Of Technology | 45:38 | 284K subscribers | 777,488 views | August 2, 2025
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Asteroid 2024 YR4, has sparked concern about its chance of hitting Earth in December 2032. How worried should we be? Scientists Warn Asteroid YR4 May Impact Earth - What We Know So far | 20:22 Dr Ben Miles | 2.17M subscribers | 462,064 views | February 23, 2025 0:00 The Discovery 2024 YR4 0:56 How to Spot an Asteroid 3:07 Ad Read 4:33 Why Are We So Bad at Predicting Asteroid Impacts? 11:42 How Much Damage Could YR4 Do? 13:04 How Could We Stop Asteroid YR4? 16:34 Conclusion
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Explanation: What are these little red dots (LRDs)? Nobody knows. Discovered only last year, hundreds of LRDs have now been found by the James Webb Space Telescope in the early universe. Although extremely faint, LRDs are now frequently identified in deep observations made for other purposes. A wide-ranging debate is raging about what LRDs may be and what importance they may have. Possible origin hypotheses include accreting supermassive black holes inside clouds of gas and dust, bursts of star formation in young dust-reddened galaxies, and dark matter powered gas clouds. The highlighted images show six nearly featureless LRDs listed under...
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Explanation: What is big, bright, and beautiful, can wear a cape made of clouds, and is at the closest point in its elliptical orbit around planet Earth? A full moon at perigee of course, captured here near moonset in predawn skies on November 5 from Kayseri, Turkiye. Full moons that happen at (or very near) perigee, and so are slightly larger and brighter than full moons on average, have become popularly known as supermoons. In fact, this full moon at perigee is the closest and brightest of the three supermoons of 2025. Rising as the Sun sets, this full moon...
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