On November 12, Delhi’s air became distinctly unbreathable. A thick blanket of smog enveloped the capital, which recorded an average Air Quality Index (AQI) of over 400, and the pollution was categorised as “severe”. On November 9, Delhiites, aware of the possible respiratory ailments this relapsing crisis could lead to, protested at India Gate. Many...
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November 19, 2025November 19, 2025Science & Tech
ISRO tests bootstrap mode start on CE20 cryogenic engine
The Indian Space Research Organisation (ISRO) has successfully demonstrated the boot-strap mode start test on the CE20 Cryogenic engine which powers the upper stage of the Launch Vehicle Mark -3 (LVM3) rocket. The test on the CE20 cryogenic engine, which was successfully conducted under vacuum conditions in the High-Altitude Test (HAT) facility at ISRO Propulsion...
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November 19, 2025November 19, 2025Science & Tech
Science for All | New atlas reveals tiled bodies are common across life on earth
(This article forms a part of the Science for All newsletter that takes the jargon out of science and puts the fun in! Subscribe now!) Biologists and designers have long been fascinated by repeating patterns in nature, from spirals in shells to honeycombs in bees’ nests. However, they have paid the most attention to patterns...
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November 19, 2025November 19, 2025Science & Tech
U.S. resident infected with H5N5 — a different type of bird flu
A Washington State resident has bird flu, and it’s a different type than what was seen in previous infections, State health officials said on November 15, 2025. It is the nation’s first human case of bird flu since February. The older adult with underlying health conditions remains hospitalized. State health officials had announced the preliminary...
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November 19, 2025November 19, 2025Science & Tech
Science quiz: Pick up the phone
Science quiz: Pick up the phone Visual: Name the historic antitrust lawsuit that resulted in the breakup of the entity denoted by this famous logo, with significant implications for telecommunications in the US. START THE QUIZ 1 / 6 | Visual: Name the historic antitrust lawsuit that resulted in the breakup of the entity denoted...
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November 19, 2025November 19, 2025Science & Tech
Why does smoke from a stove or hearth irritate the eyes?
Question from Sahad Chembra A: When smoke gets in your eyes, it is not really the small pieces of the ash that make your eyes water up. Instead, the culprits are mostly the chemicals riding along with them. Smoke from wood, cigarettes, and garbage contains many irritating gases, such as formaldehyde and acrolein. When these...
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November 19, 2025November 19, 2025Science & Tech
The myth of the ‘normal’: what does your lab report really mean?
When the U.S. wrestler and actor Dwayne “The Rock” Johnson was in his prime, his Body Mass Index (BMI) was around 33 kg/m², technically ‘obese’ by World Health Organization (WHO) standards. Yet no one watching him could call him unhealthy. This paradox is one glimpse of how numbers alone can’t be used to define good...
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November 18, 2025November 18, 2025Science & Tech
Bengaluru scientists win 2025 Tata Transformation Prize
The New York Academy of Sciences and Tata Sons on Tuesday announced three scientists based out of Bengaluru as the winners of the 2025 Tata Transformation Prize. The winners are Padubidri V. Shivaprasad of National Centre for Biological Sciences, and Balasubramanian Gopal and Ambarish Ghosh of Indian Institute of Science for research in food security, sustainability and healthcare, respectively. Ambarish Ghosh The winners were...
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November 18, 2025November 18, 2025Science & Tech
Watch: How is India responding to calls for shipping decarbonisation?
Interview: M. Kalyanaraman Experts: Declan Bush, Debesh Lahiri, Kiran Shet Editing: Thamodharan B. Voiceover: Smriti S Production: Shikha Kumari
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November 18, 2025November 18, 2025Science & Tech
Daily Quiz: On Lunokhod 1
Daily Quiz: On Lunokhod 1 1971 Soviet postage stamp commemorates the spacecraft that delivered the world’s first successful planetary rover to the Moon START THE QUIZ 1 / 6 | On which lunar ‘sea’ did Lunokhod 1 land? Answer : Mare Imbrium or Sea of Rains DID YOU KNOW THE ANSWER? YES NO SHOW ANSWER
