A: The earth formed as a molten world. Around 4 billion years ago, its surface cooled enough for water vapour to condense. Torrential rains then fell for centuries, filling basins to create the first oceans around 3.8 billion years ago. Once liquid water covered large parts of the surface, three forces set it in motion....
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April 7, 2026April 7, 2026Science & Tech
Dung test to detect early pregnancy in tigresses expanded to cattle
What began as an effort to prevent tigresses in captivity from killing their own cubs has turned into an unexpected boon for Indian farmers. Scientists at the CSIR–Centre for Cellular and Molecular Biology (CCMB) in Hyderabad have developed a simple, non‑invasive test — based on animal dung analysis — that can detect pregnancy in cows...
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April 7, 2026April 7, 2026Science & Tech
India and the second Space Age
India stands at a pivotal crossroads in its journey in space. The era of state-led exploration has given way to the “Second Space Age”—a competitive frontier defined by commercial interests, private enterprise, and new geopolitical ambitions. This collection of articles from The Hindu provides an essential record of how a nation, once celebrated for its...
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April 7, 2026April 7, 2026Children, Science & Tech
Cosmic highlights
April’s night sky has had a dazzling start, with a glowing full moon and a brief appearance by Mercury. But there’s more to come. New Moon: The Moon and the Sun will be on the same side of the Earth on April 17. With no moonlight, this will be the perfect time to observe faint...
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April 7, 2026April 7, 2026Environment, Science & Tech
Shorebird from Australia spotted over 7,400 km away on island in Andamans: Expert
“A tagged shorebird that flew more than 7,400 km from South Australia has been spotted on the remote Narcondam Island in the Andaman and Nicobar archipelago,” an expert said on Tuesday (April 7, 2026). “The bird, a Sanderling, was photographed by G. Thikanna, an assistant sub-inspector with the Andaman Police, during a posting on the...
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April 7, 2026April 7, 2026Science & Tech
Fast Breeder Nuclear Reactor at Kalpakam takes ‘critical’ leap forward
Marking a significant step forward in India’s nuclear power programme, Prime Minister Narendra Modi, via a post on X, late on Monday (April 6, 2026), said that the prototype fast breeder reactor (PFBR) at Kalpakkam, Chennai, had achieved ‘criticality.’ This means that the nuclear reaction in the reactor had become safely self-sustaining and was on...
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April 7, 2026April 7, 2026Science & Tech
What is space-based solar power?
A: The Shimizu Corporation in Japan has proposed a belt of power plants sitting along the moon’s equator, which is 11,000 km long, called the “Lunar Ring”. According to the company’s plans, robots can build this mega-structure from lunar soil. The facilities will collect solar energy from the sun and beam it to the earth...
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April 7, 2026April 7, 2026Science & Tech
Kalpakkam fast breeder reactor attains criticality
India’s first prototype fast-breeder reactor (PFBR) in Tamil Nadu‘s Kalpakkam on Monday (April 6, 2026) came another step forward in its civil nuclear journey as it attained criticality. First criticality in a fast breeder reactor is the moment when the nuclear chain reaction becomes self-sustaining. A breeder reactor is a nuclear reactor that produces more fissile...
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April 7, 2026April 7, 2026Science & Tech
Donald Trump praises Artemis astronauts: ‘You’ve made history’
U.S. President Donald Trump on Monday (April 6, 2026) called and congratulated the Artemis astronauts circling the Moon for making “history,” telling them they’ve “made all America really proud, incredibly proud.” “You really are modern-day pioneers — all of you,” Mr. Trump said, before launching into a friendly interview of sorts with the three Americans...
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April 7, 2026April 7, 2026Science & Tech
Artemis II breaks Apollo 13’s distance record with daring moon flyby that included a solar eclipse
After traveling deeper into space than any other humans, the Artemis II astronauts pointed their moonship toward home on Monday (April 6, 2026) night, wrapping up a lunar cruise that revealed views of the far side never beheld by eyes until now. Their flyby of the moon even included some celestial sightseeing besides yielding rich...
