World
Collision with Moon-sized body brought gold to Earth: Study
Washington, Dec 6 (IANS) A large Moon-sized planetary body penetrated all the way down to the Earth’s core during the early days of our home planet’s formation, delivering in the process precious metals such as gold and platinum, suggests a new study.
The team determined the total amount of material delivered to Earth may have been two to five times greater than previously thought, and the impacts altered Earth in a profound way while depositing familiar elements like gold.
“These results have far-reaching implications for Moon-forming theories and beyond,” said Simone Marchi of Southwest Research Institute in the US.
“Interestingly, our findings elucidate the role of large collisions in delivering precious metals like gold and platinum found here on Earth,” Marchi added.
Planetary collisions are at the core of our solar system’s formation. Scientists have long believed that after the Moon’s formation, the early Earth experienced a long period of bombardment that diminished about 3.8 billion years ago.
During this period, called “late accretion,” collisions with Moon-sized planetary bodies, known as planetesimals, embedded extensive amounts of metal and rock-forming minerals into the Earth’s mantle and crust.
It is estimated that approximately 0.5 per cent of Earth’s present mass was delivered during this stage of planetary evolution.
The new study confirms how massive collisions delivered metal to early Earth.
With the support of NASA, researchers at the Southwest Research Institute and University of Maryland created high-resolution impact simulations that showed significant portions of a large planetesimal’s core could penetrate all the way down to merge with Earth’s core — or bounced back into space and escape the planet entirely.
The study published in the journal Nature Geoscience found evidence of more massive accretion onto the Earth than previously thought after the Moon’s formation.
The mantle abundances of certain trace elements such as platinum, iridium and gold, which tend to bond chemically with metallic iron, are much higher than what would be expected to result from core formation.
This discrepancy can most easily be explained by late accretion after core formation was complete, the study said.
–IANS
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Lucknow: Vishal Singh, a renowned social worker from Lucknow, also known as Foodman, has once again made India proud. He was honored by the Happy Hands Gloves Cooperative Limited Company in Korathai, Thailand, for his work with the Hunger Free World Mission.
The Hunger Free World Mission’s meeting was held in Korathai, Thailand, under Vishal Singh’s leadership. Representatives from several countries, including Mr. Raja Dwivedi (Managing Director of Happy Hands Gloves Limited), Thailand Coordinator Mr. Raja Mishra, and member Mr. Varun Singh, attended the event.
Under Vishal Singh’s leadership, the attendees took a pledge to work together toward creating a hunger-free world.
Speaking on the occasion, Vishal Singh explained that the main goal of the Hunger Free World Mission is social participation. He said the mission is not just about feeding people but also about meeting other basic needs of those who are struggling. The mission focuses on helping families of terminally ill patients in hospitals by providing food and shelter. It also works to fulfill essential needs like education, jobs, and care for the elderly.
For the last 16 years, the Vijay Sri Foundation has been providing free services, benefiting thousands of people. Vishal Singh highlighted that the mission aims to gain global recognition like other organizations such as WHO, WWF, and Red Cross, which work for social causes.
During this meeting, Vishal Singh was appointed as the Chairman of the Hunger Free World Mission by representatives from various countries. They also discussed holding regular meetings in different countries to push the mission forward.
Business tycoon Dr. Abhishek Verma has also supported this humanitarian mission, vowing to promote the idea of “Seva Parmo Dharma” (Service is the highest duty) worldwide. Vishal Singh praised him, stating that people like Dr .Abhishek Verma inspire others to work for the betterment of society.
Recently, Romania’s Ambassador, Mr . Daniela Sezonov Ţane, invited Vishal Singh to the Romanian Embassy in Delhi, where they discussed the mission in detail. Impressed by his humanitarian work, she honored Vishal Singh and invited him to Romania to take the mission forward .
Food man Vishal Singh has been serving the people of India for the past 16 years. Through the Vijay Sri Foundation, he provides free meals to cancer patients & their families ,shelter, and education for women & children along with running free old-age homes in Lucknow.
In addition to his humanitarian work, Vishal Singh also addresses issues like crime and corruption through his role as Chairman of Seva Path Media and Managing Director of Vijay Sri Foundation.
During the COVID-19 pandemic, Vishal Singh and his team worked tirelessly to provide food and help to the needy, including starving children, elderly citizens, and pregnant women. Despite contracting the virus himself, he continued to assist others after his recovery. He even created a life-saving oxygen regulator using household items, which was praised by doctors both in India and abroad.
In his address at the meeting, Vishal Singh spoke about his mission to create a hunger-free world. He pointed out that India’s large population, along with issues like unemployment and poverty, has caused the country to fall on the Hunger Index. He urged people to contribute just one handful of grains daily to help create a hunger-free world.
He concluded by saying that through social participation, we can empower the people around us, meet their basic needs, and work together to build a stronger, more prosperous, and developed society.
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