Great Sandy Desert
Why in News: The largest recorded population of the night parrot, one of Australia’s rarest birds, has been discovered in the Great Sandy Desert of Western Australia.
About Great Sandy Desert:
- Location: The Great Sandy Desert is an arid region in northern Western Australia.
- Size: It is Australia’s second-largest desert, covering an area of 284,993 sq.km, second only to the Great Victoria Desert.
- Geographical Extent: The desert stretches from Eighty Mile Beach on the Indian Ocean eastward into the Northern Territory, and from Kimberley Downs southward to the Tropic of Capricorn and the Gibson Desert.
- Landscape: It is characterized by long sand ridges, chains of large salt lakes, and occasional low rocky hills, with vegetation dominated by Triodia (Spinifex) grass.
- Surrounding Areas: The Gibson Desert lies to the south, while the Tanami Desert is situated to the east.
- Temperature: The desert experiences extremely high daytime temperatures, cooler nights, and very low humidity.
- Indigenous Presence: The area is sparsely populated, primarily by Indigenous Australians. The two main tribes in the region are the Martu in the west and the Pintupi in the east.
East Rajasthan Canal Project (ERCP)
Why in News: The Chief Minister of Rajasthan recently highlighted the importance of the Eastern Rajasthan Canal Project (ERCP) for the state, noting that both Rajasthan and Madhya Pradesh are collaborating to complete the project.
About Eastern Rajasthan Canal Project (ERCP):
- Objective: The ERCP is a major initiative by the Rajasthan government aimed at utilizing surplus water from rivers in southern Rajasthan to address water scarcity for drinking and irrigation in the southeastern parts of the state.
- Water Harvesting: The project involves the intra-basin transfer of surplus monsoon water from rivers in the Chambal Basin, specifically from the Kalisindh, Parvati, Mej, and Chakan sub-basins, to water-deficit areas in the Banas, Gambhiri, Banganga, and Parbati sub-basins.
- Beneficiaries: It aims to provide water for drinking, industrial purposes, and irrigation to 13 districts in eastern Rajasthan, irrigating approximately 2.82 lakh hectares of land.
- Additional Benefits: The project will also support the Delhi-Mumbai Industrial Corridor and help manage flood and drought conditions in the region.
Key Facts about the Chambal River:
- Tributary: The Chambal River is a tributary of the Yamuna River, forming part of the larger Gangetic drainage system.
- Origin: The river originates at the Singar Chouri peak on the northern slopes of the Vindhya Mountains.
- Flow Path: It flows through Madhya Pradesh, passes through Rajasthan, forms the border between Rajasthan and Madhya Pradesh, and then heads southeast to join the Yamuna River in Uttar Pradesh.
- Geographical Features: The Chambal Basin is bounded by the Vindhyan mountain ranges and the Aravallis, with the Hadauti plateau in Rajasthan located in its upper catchment area, southeast of the Mewar Plains.
- Pollution-Free: The Chambal River is known for being one of the cleanest rivers in India.
- Tributaries: Major tributaries include the Banas, Kali Sindh, Sipra, and Parbati rivers.
- Dams: Significant dams on the Chambal River include Gandhi Sagar Dam, Rana Pratap Sagar Dam, and Jawahar Sagar Dam.
- National Chambal Sanctuary: The sanctuary, located at the tri-junction of Rajasthan, Madhya Pradesh, and Uttar Pradesh, is situated along the Chambal River.
Spiral Galaxy
Why in News: NASA’s Hubble Space Telescope recently released a breathtaking video showcasing a spiral galaxy named Caldwell 45, also known as NGC 5248.
About Spiral Galaxies:
- Twisted Collections: Spiral galaxies are collections of stars and gas, often forming beautiful, twisted shapes. They are composed of hot, young stars.
- Spiral Arms: The stars, gas, and dust in a spiral galaxy are arranged in spiral arms that extend outward from the galaxy’s center.
- Common Shape: Most galaxies identified by scientists are spiral galaxies, unlike elliptical and irregular galaxies. Around 60% of all galaxies are believed to be spirals.
- Milky Way Example: The Milky Way, which houses Earth and our solar system, is a spiral galaxy.
- Central Bulge and Disk: Spiral galaxies have a central bulge, typically consisting of older, dimmer stars, and a rotating disk of stars surrounding it.
- Supermassive Black Hole: The bulge often contains a supermassive black hole.
- Barred Structure: Around two-thirds of spiral galaxies feature a bar structure through the center, including the Milky Way.
- Spiral Arms: The disk of stars forms arms that spiral around the galaxy, rich in gas, dust, and young, bright stars.
- Rotation and Halo: The spiral arms usually trail the galaxy’s spin. Spiral galaxies also have a massive halo mostly composed of dark matter, surrounding their visible part.
- Evolution: As spiral galaxies age, they are thought to evolve into elliptical galaxies.
Jivitputrika Festival
Why in News: At least 46 people, including 37 children, tragically drowned while performing a holy dip in rivers and ponds across various districts of Bihar during the recent ‘Jivitputrika’ festival.
About Jivitputrika Festival:
- Hindu Festival: Jivitputrika, or Jitiya Vrat, is a significant Hindu festival celebrated mainly in northern and eastern India, including Bihar, Uttar Pradesh, Jharkhand, and Nepal.
- Devotion for Children: Mothers observe this festival by fasting to pray for the long life, well-being, and prosperity of their children.
- Three-Day Celebration: The festival lasts for three days, with the highlight being a strict ‘nirjala’ fast, where no water is consumed.
- Expression of Love: The fast represents a mother’s deep devotion and love, believed to bring divine blessings to her children.
- Mythological Significance: The festival is rooted in Hindu mythology, honoring King Jimutavahana’s sacrifice for the welfare of others.
Ritual Phases:
- Nahai-Khai (Day 1): The festival begins with mothers taking a purifying bath and eating a nourishing meal.
- Fasting (Day 2): The second day is marked by a strict fast, where participants abstain from food and water.
- Paaran (Day 3): On the final day, the fast is concluded with a special meal to break the fast.