#KnowledgeBit: 51 Pegasi b, officially named #Dimidium, is an extrasolar planet approximately 50 light-years (15 parsecs) away in the constellation of Pegasus.
It was the first #Exoplanet to be discovered orbiting a main-sequence star.
knowledgezone.co.in/kbits/63662c...
#KnowledgeBit: Ring galaxies are galaxies with a distinctive, circular, ring-like appearance, often formed from the impact of a smaller galaxy passing through the center of a larger one.
This collision creates a wave of star formation.
knowledgezone.co.in/trends/brows...
#KnowledgeBit: #Olivine is one of the primary components of the Earth's upper mantle. It is a common mineral in Earth's subsurface, but weathers quickly on the surface.
It is proposed as a good candidate for accelerated weathering to sequester carbon dioxide.
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#KnowledgeBit: In biology, #Homology is similarity due to shared ancestry between a pair of structures or genes in different taxa.
A common example of homologous structures is the forelimbs of vertebrates.
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#KnowledgeBit: #Pioneer 10 is an American space probe launched in 1972 that completed the first mission to the planet Jupiter.
Between July 15, 1972, and February 15, 1973, it became the first spacecraft to traverse the #AsteroidBelt.
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#KnowledgeBit: A #Subsun is an #Optical #Phenomenon that appears as a bright spot directly below the Sun.
It's a type of halo, similar to a sun dog, but formed by reflection off ice crystals rather than refraction.
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#KnowledgeBit: The #Genesis #Rock is a lunar sample collected by the Apollo 15 astronauts in 1971. It's the first sample of the moon's early crust.
It played a key role in supporting the "magma ocean" hypothesis.
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#KnowledgeBit: The #Sistine #Chapel of the ancients is an eight-mile stretch of cliff in Colombia that is covered by tens of thousands of paintings created up to 12,500 years ago.
It is one of the world's largest collections of prehistoric #RockArt.
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#KnowledgeBit: A #Langford pairing is a sequence of numbers 1 through n, each appearing twice, where the two occurrences of each number are separated by a distance equal to that number.
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#KnowledgeBit: #Mons (plural: montes, from the Latin word) is a mountain on a celestial body. The term is used in planetary nomenclature: it is a part of the international names of such features.
Examples: Mons Huygens (Moon) and Olympus Mons (Mars).
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#KnowledgeBit: In #Information theory, the #Kolmogorov #Complexity of a string is defined as the length of the #Shortest #Program that can generate that string as output.
It provides a way to quantify the information content of a string
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#KnowledgeBit: Pale Blue Dot is a photograph of planet Earth taken on February 14, 1990, by the Voyager 1 space probe from a record distance of about 6 billion kilometers.
The phrase "Pale Blue Dot" was coined by Carl Sagan.
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#KnowledgeBit: The #Ponzo #Illusion is a visual illusion where two lines of equal length appear to be different lengths when placed between converging lines, similar to railroad tracks receding into the distance.
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#KnowledgeBit: #Arctic #BlueCorridors are migration #Superhighways that allow whales, seals, walrus and other marine animals to move between locations to find the conditions they need for feeding, giving birth and mating.
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#KnowledgeBit: #Orogeny, or mountain building, is the result of collision between two landmasses.
This may occur via collision of continental crust (continent-continent collision) or when oceanic and continental crust collide (ocean-continent collision).
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#KnowledgeBit: Mount Fanjing, or Fanjingshan, is part of the Wuling mountain range in southwestern China.
Named as a UNESCO World Heritage Site, the mountain is home to a conservation area, a nature reserve, and a number of Buddhist temples.
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#KnowledgeBit: Russian chemist Dmitri #Mendeleev was the first to arrange elements in the structure we know as the periodic table. Mendeleev used a solitaire sorting strategy to help arrange the elements.
Periodic Table of the Elements: Origins of the Elements.
svs.gsfc.nasa.gov/13873
#KnowledgeBit: #Sigiriya (#LionRock Sinhala) is an ancient rock fortress in the Central Province, #SriLanka.
Sigiriya today is a #UNESCO listed World Heritage Site. It is one of the best preserved examples of ancient urban planning.
knowledgezone.co.in/kbits/62dea9...
#KnowledgeBit: The #Carrington Event was the most powerful solar storm ever recorded, occurring in September 1859.
It was named after the British astronomer Richard Carrington, who witnessed and documented the solar flare that triggered the event.
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#KnowledgeBit: #Maraya Concert Hall in AlUla, #SaudiArabia is the world's largest #Mirrored building, according to Guinness World Records.
The name Maraya comes from the Arabic word for "mirror" or "reflection".
knowledgezone.co.in/kbits/65b7ba...
#KnowledgeBit: A Fata Morgana is a complex form of superior mirage that is seen in a narrow band right above the horizon.
These mirages were believed to be fairy castles in the air or false land created by witchcraft to lure sailors.
knowledgezone.co.in/kbits/60ba20...
#KnowledgeBit: The #Kessler #Syndrome is a scenario proposed by NASA scientist Donald J. Kessler in 1978.
It describes a self-sustaining cascade of collisions in low Earth orbit (LEO) caused by the increasing density of space debris.
knowledgezone.co.in/kbits/679737...
#KnowledgeBit: The On-Line Encyclopedia of Integer Sequences (#OEIS) is a freely accessible online database of integer sequences.
It's a fantastic resource for anyone working with numbers.
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#KnowledgeBit: A #SeaStack is a tall, isolated pillar of rock that stands out from the coastline . They are formed by erosion from wind and waves over long periods of time.
Sea stacks can be found all over the world, in a variety of shapes and sizes.
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#KnowledgeBit: Poecilotheria metallica, also known as the #Peacock #Tarantula, is an Old World species of tarantula. It is the only blue species of the genus Poecilotheria. Like others in its genus it exhibits an intricate fractal-like pattern on the abdomen.
knowledgezone.co.in/kbits/62f0fd...
#KnowledgeBit: #Saturn's #Hexagon is a persistent approximately hexagonal #Cloud pattern around the north pole of the planet Saturn, located at about 78°N.
Saturn's hexagon was discovered during the #Voyager mission in 1981.
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#KnowledgeBit: The #Cleveland #Summit, or Muhammad Ali Summit, was a historic meeting that took place on June 4, 1967, in Cleveland, Ohio.
It was organized by football star Jim Brown in response to Muhammad Ali's refusal to be drafted into the Vietnam War.
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#KnowledgeBit: #Kepler-452b is an #Exoplanet sometimes quoted to be an #Earth2.0 or Earth's Cousin based on its characteristics. It is the first potentially rocky super-Earth planet discovered orbiting within the habitable zone of a star very similar to the Sun.
knowledgezone.co.in/resources/gk...
#KnowledgeBit: A #Pulsar (from pulsating radio source) is a highly magnetized rotating #NeutronStar that emits beams of electromagnetic radiation out of its magnetic poles. Pulsars aren't really stars or at least they aren't "living" stars.
knowledgezone.co.in/kbits/63bfa5...
#KnowledgeBit: The ancient Rujm el-Hiri (also known as the 'Wheel of Ghosts') site on the Golan Heights plateau in southwest Syria, is a marvel of a monument – previously thought to have originally served as an astronomical observatory of sorts.
knowledgezone.co.in/kbits/677cc9...
