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DAILY NEWS ANALYSIS
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06 April, 2021
5 Min Read
Indian astronomers from Aryabhatta Research Institute of Observational Sciences have tracked a rare supernova explosion and traced it to one of the hottest kind of stars called Wolf–Rayet stars or WR stars.
The rare Wolf–Rayet stars are highly luminous objects a thousand times that of the Sun. They strip their outer hydrogen envelope which is associated with the fusion of Helium and other elements in the massive core.
Supernova
Supernovae can be triggered in one of two ways:
Type I supernova or Type Ia supernova
The difference between Nova and Type I supernova
|
Nova |
Type I supernova |
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In a nova, the system can shine up to a million times brighter than normal. |
A supernova is a violent stellar explosion that can shine as brightly as an entire galaxy of billions of normal stars. |
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As long as it continues to take gas from its companion star, the white dwarf can produce nova outbursts at regular intervals. |
If enough gas piles up on the surface of the white dwarf, a runaway thermonuclear explosion blasts the star to bits. |
Type II supernova
Importance of supernova: Creating and dispersing new elements
In the supernova explosion, all of these elements are expelled out into space, and new stars are born out of this matter.
Source: PIB
03 Dec, 25
On 1st November, eight Indian states—Andhra Pradesh, Chhattisgarh, Haryana, Karnataka, Kerala, Madhya Pradesh, Punjab, and Tamil Nadu—along with five Union Territories—Andaman and Nicobar Islands, Chandigarh, Delhi, Lakshadweep, and Puducherry—celebrate their Formation Day. This date marks an important milestone in India
02 Dec, 25
The Turtle Wildlife Sanctuary, also known as the Kachhua Sanctuary, is located in the Varanasi district of Uttar Pradesh. It is recognised as India’s first freshwater turtle wildlife sanctuary, established to conserve endangered turtle species and support the ecological health of the Ganga River. Location and Extent The sanctuary co
02 Dec, 25
The Ministry of Education plans to introduce Artificial Intelligence (AI) and Computational Thinking (CT) from Class 3 onwards in the 2026–27 academic year. This initiative is part of the National Curriculum Framework for School Education (NCF-SE) 2023 and aligns with the National Education Policy (NEP) 2020. The aim is to prepare student
02 Dec, 25
Scientists from the Environment Department of Himachal Pradesh University (HPU) in Shimla have recently revealed that the Sal tree (Shorea robusta) is the most effective natural air purifier for combating rising pollution levels. Their findings highlight the tree’s superior capacity to trap dust, absorb gases, and cleanse the air compared
02 Dec, 25
The President of the United States has ordered the resumption of nuclear weapon testing after a gap of 33 years, the last test being in 1992. This decision marks a significant shift in global nuclear policy and has far-reaching implications for geopolitics, the environment, and international security. Status of Global Nuclear Weapon Testing
03 Dec,2025
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