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Indian scientists identify Martian analogue sites

The laser Raman instrument facility at the Department of Geology, which is funded by the DST-FIST. Photo credit: PIB Researchers from Keralam have identified two key minerals in parts of Tamil Nadu and the Atacama Desert in Chile, which reflect geological, chemical and physical similarities with Mars, and have helped establish these areas as Martian analogue...

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Scientists unearth new instance of ‘contagious cancer’ in animals

Ordinarily, cancers are not regarded as contagious — whereas AIDS, COVID-19, tuberculosis, and malaria are. Contagious diseases spread from one person to another through direct contact, airborne droplets or through insect vectors (like mosquitoes). On the other hand, cancers originate from one of the patient’s own cells. However, so far, scientists have documented three instances...

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Why is glass transparent?

Glass has a disordered atomic structure, meaning its atoms don’t have a regularly repeating arrangement. | Photo Credit: Rob Wingate/Unsplash — Manda Venkata Apparao, Hyderabad Glass is transparent for two reasons. First, light carries energy in small packets called photons. Electrons in atoms can absorb these photons and move from one energy level to another...

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India’s first solar mission Aditya-L1 generates Doppler velocity images of the solar corona

ISRO’s Solar Mission Aditya-L1 entering Halo Orbit. File | Photo Credit: ANI Scientists have generated Doppler velocity images of activities taking place in the solar corona using data obtained with the Visible Emission Line Coronagraph (VELC) payload onboard India’s maiden solar mission, Aditya-L1. The Aditya-L1 satellite generates Doppler velocity images of the solar corona, and...

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Satellite radiation: blocking the view

A view of radio telescopes of the Karl G. Jansky Very Large Array in the U.S. | Photo Credit: Yifu Wu/Unsplash Communications satellites in low-earth orbit are emitting radio signals that interfere with astronomy across a range of frequencies, a study published in Monthly Notices of the Royal Astronomical Society has reported. The findings, reported...

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Two-Face molecule could help make IBD treatments more effective

Deep within the intestinal wall, beyond where digestion and nutrient absorption occur, are immune outposts called solitary isolated lymphoid tissues, or SILTs. These structures host cells that govern how aggressively the gut reacts to microbes. A weak response lets pathogens take root while an overactive one causes the immune system to attack the gut —...

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Russian military satellite stalks U.S. radar satellite in orbit

Russia and Ukraine are at war on the ground — and two satellites around 550 km above have come to the centre of a similar confrontation. The Russian Cosmos-2612 satellite has changed its orbit repeatedly to approach ICEYE-X36, a commercial radar-imaging satellite registered in the U.S. and whose operator currently supplies radar data to Ukraine....

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Ariel, Umbriel and the man who made them real

You know the difference between inventions and discoveries, don’t you? While both of them are fundamental processes that have shaped the course of human history, there’s a difference between them. In simple terms, inventions correspond to coming up with something new based on experimentation and study. Discoveries, meanwhile, are the process of finding something that...

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