Category: Science

Science

Consistent effort key to India’s growth in space technology, says ISRO chairman

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Consistent effort key to India’s growth in space technology, says ISRO chairman

M. Jayashree, second from left, receiving the President’s Medal for overall highest CGPA in B. Tech from V. Narayanan, ISRO Chairman, at the NIT-Tiruchi convocation on Saturday. NIT-Tiruchi Director G. Aghila is at right. | Photo Credit: SPECIAL ARRANGEMENT India has made great strides in space technology and attained global leadership through sheer hard work…

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Efforts to restore mangroves can turn the tide on India’s coastal security

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Efforts to restore mangroves can turn the tide on India’s coastal security

Across India’s coasts, from the languid channels of the Sundarbans delta to Mumbai’s stifled creeks, mangroves form a barrier between land and sea. These coastal forests are critical in India’s pursuit of climate resilience, biodiversity conservation, and the empowerment of coastal communities. However, in the face of urban expansion, climate change, and development, how are…

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Why do mirrors flip left and right but not up and down?

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Why do mirrors flip left and right but not up and down?

The confusion comes from how our brains interpret the reflection. | Photo Credit: Andre Mouton/Unsplash A: This classic question has a surprisingly interesting answer. The fact is mirrors don’t actually flip left and right, much less up and down. Instead, they flip the image of the world you see front to back. When you stand…

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Altermagnet conducts with different charge carriers in different directions

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Altermagnet conducts with different charge carriers in different directions

In altermagnetic materials, atoms form a regular pattern with their spin and spatial orientation alternating on the neighbouring magnetic sites in the crystal. | Photo Credit: Libor Šmejkal (CC BY-SA) Some materials conduct electricity mainly with one kind of charge‑carrier everywhere: either negative electrons (n‑type) or positive ‘holes’ (p‑type).  A rare class can breach this…

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Science retracts NASA arsenic bacteria paper after years of controversy

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Science retracts NASA arsenic bacteria paper after years of controversy

In 2010, in the waters of Mono Lake in California, NASA-funded scientists claimed to have found a microbe called GFAJ-1 they said rewrote biology. It had allegedly replaced the phosphorus in its DNA with the toxic element arsenic. The announcement, made at a high-profile press conference on December 2 that year, stunned the world. The…

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Bacterial cell walls could hold clues to better human health, say CCMB scientists

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Bacterial cell walls could hold clues to better human health, say CCMB scientists

Bacteria are enclosed by protective cell walls, made from a unique substance called peptidoglycan. This material is absent in other life forms, including humans, which is why many antibiotics target it. A team of scientists led by Manjula Reddy at CSIR-Centre for Cellular and Molecular Biology (CCMB), Hyderabad, has found that bacteria sometimes make mistakes…

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Consilient evidence links lack of vitamin D to neurodevelopmental issues

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Consilient evidence links lack of vitamin D to neurodevelopmental issues

From bones to immune cells, vitamin D is everywhere, guiding growth and shaping defence. But could it also have an effect on the mind? A major new study suggests so. Published in The Lancet Psychiatry, the study drew from the extraordinary depth of Danish health data to establish whether neonatal vitamin D levels might contribute…

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