CURRENT-AFFAIRS

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  • The Indrayani River is a significant watercourse in Maharashtra, particularly for its religious, cultural, and agricultural importance. Here's a summary of the key details about the river:
  • Course and Geography:
    • Origin: The Indrayani River originates from the Western Ghats near Lonavala, a popular hill station in Maharashtra.
    • Length: The river spans a length of 103.5 kilometers.
    • Flow: It is a rain-fed river that flows through the Pune district, eventually merging with the Bhima River. The Bhima River is a tributary of the Krishna River, which flows toward the south of India.
  • Religious Significance:
    • Sacred Towns: The river holds religious significance with two sacred towns situated along its banks—Alandi and Dehu.
    • Dehu: Known as the hometown of the famous Marathi saint, poet, and philosopher Tukaram, Dehu attracts pilgrims who revere Tukaram’s teachings and his legacy.
    • Alandi: Alandi is the place where the saint Dnyaneshwar’s samadhi (final resting place) is located, making it an important pilgrimage site for devotees of Dnyaneshwar.
  • Economic and Agricultural Importance:
    • The river passes through the industrial town of Pimpri-Chinchwad, which is an important hub for the region’s economy.
    • The river is also integral to local irrigation and agriculture, supporting farming communities along its banks.
  • Hydroelectric Project:
    • The Valvan Dam located at Kamshet, situated on the Indrayani River, serves as a hydroelectric generating station, contributing to the region's power supply.
    • This river blends Maharashtra's natural beauty with its spiritual legacy, making it a vital and revered part of the state's geography and culture.

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  • The Union Home Ministry has recently urged State governments to prevent the misuse and inappropriate representation of the State Emblem of India, emphasizing that the emblem is incomplete without the motto "Satyameva Jayate" in Devanagari script.
  • About the State Emblem of India:
    • The State Emblem of India is a modified version of the Lion Capital of Ashoka at Sarnath.
    • In the original Ashokan pillar, four lions are mounted back-to-back on a circular abacus, which rests on a bell-shaped lotus.
    • The frieze on the abacus features sculptures in high relief of a lion, elephant, galloping horse, and bull, separated by Dharma Chakras.
    • The State Emblem, adopted by the Government of India on 26 January 1950, shows only three lions, with the fourth lion hidden from view.
    • In the emblem, a wheel is displayed in relief at the center of the abacus, with a bull on the right and a horse on the left. There are also outlines of other wheels at the far right and left.
    • The bell-shaped lotus from the original has been omitted.
    • Below the Lion Capital, the words "Satyameva Jayate" appear in Devanagari Script, India’s national motto. This phrase, meaning “Truth alone triumphs,” is a quote from the Mundaka Upanishad, which is the most philosophical of the four Vedas.
    • The usage of the State Emblem is strictly regulated under the State Emblem of India (Prohibition of Improper Use) Act, 2005, and the State Emblem of India (Regulation of Use) Rules, 2007, ensuring that it is only used for authorized purposes.

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  • Astronomers have recently uncovered a massive black hole named Gaia BH3, located surprisingly close to Earth. This discovery marks the third of its kind, made possible through the use of the European Space Agency's Gaia telescope.
  • About the Gaia Mission:
    • Gaia (Global Astrometric Interferometer for Astrophysics) is an astronomical observatory mission operated by the European Space Agency (ESA).
    • The primary objective of the mission is to create the largest and most precise three-dimensional map of the Milky Way Galaxy by surveying approximately 1% of its estimated 100 billion stars.
    • Launched in 2013, Gaia is positioned at Lagrange Point 2, roughly 930,000 miles (1.5 million kilometers) from Earth, orbiting the sun in sync with our planet.
    • This location shields the spacecraft from the sun's glare while avoiding the distortion caused by Earth's atmosphere, which often affects ground-based telescopic observations. The spacecraft, shaped like a flying saucer, conducts a full sky scan every two months.
    • Gaia is equipped with two telescopes positioned 106 degrees apart, housed in a 7.5-foot-wide (2.3 meters) satellite attached to a 33-foot-wide (10 meters) circular sunshield.
    • With its advanced technology, Gaia will provide unmatched positional and radial velocity measurements, essential for producing a stereoscopic and kinematic census of about one billion stars across the Milky Way and the Local Group of galaxies.
    • The all-sky survey will track the position, brightness, and motion of over a billion stars, contributing valuable data in the search for exoplanets. These exoplanets will be identified by detecting minute changes in a star's position caused by the gravitational pull of orbiting planets or by observing dips in the star's light as a planet transits in front of it.
    • Gaia will also map thousands of objects in the Solar System, focusing on main belt asteroids that orbit the Sun between Mars and Jupiter.

Additionally, the spacecraft’s sensitivity to faint and fast-moving objects will likely lead to the discovery of several thousand Near-Earth Objects (NEOs), expanding our knowledge of potential threats or opportunities within our cosmic neighborhood.