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10 July, 2020
2 Min Read
Lithium
Lithium, a light element commonly used today in communication device technology. It was first produced in the Big Bang, around 13.7 billion years ago when the universe came into being, along with other elements. The present abundance of lithium in the universe is only four times the original (Big Bang) value.
It is actually destroyed in the stars. The Sun, for instance, has about a factor of 100 lower amount of lithium than the Earth.
Helium Flash in Stars
A forty-year-old puzzle regarding the production of lithium in stars has been solved by Indian researchers-BHARAT KUMAR. Stars, as per known mechanisms of evolution, actually destroy lithium as they evolve into red giants.
Planets were known to have more lithium than their stars as is the case with the Earth-Sun pair. However, leading to a contradiction, some stars were found that were lithium-rich.
When stars grow beyond their Red Giant stage into what is known as the Red Clump stage, they produce lithium in what is known as a Helium Flash and this is what enriches them with lithium.
Source: TH
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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