Comet from edge of solar system killed the dinosaurs: study

Their analysis suggests that we can expect similar impacts every 250 million to 750 million years. Sixty-six million years ago, a huge celestial object struck off the coast of what is now Mexico, triggering a catastrophic “impact winter” that eventually wiped out three-quarters of life on Earth, including the dinosaurs. A pair of astronomers at […]

Best from science journals: Listen to the sound of an 18,000-year-old seashell horn

Here are some of the most interesting research papers to have appeared in top science journals last week. (Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. Click here.) Music of the past Published in Science Advances (A) Side view. (B) […]

Global wildlife trade causes decline of species abundance: study

International wildlife trade is said to be worth between $4 to $20 billion per year International wildlife trade is causing declines of over 60% in the abundance of species on the planet, say scientists who call for more research on the impacts of this severe threat across the world. The scientists, including those from the […]

Scientists studying samples to know roots of Uttarakhand glacier disaster

A week after a landslip claimed 58 lives in Chamoli, Uttarakhand, a team of scientists at the Wadia Institute of Himalayan Geology (WIHG) in Dehradun are analysing fragments of ice, rock and mud in their labs to better understand the origins of the disaster. Also read: Death toll in Chamoli disaster now 58 Five WIHG […]

Single dose of Pfizer Covid-19 vaccine provokes strong immune response: Study – Times of India

JERUSALEM: People previously infected with the novel coronavirus respond very strongly to single dose of the Pfizer-BioNTech Covid-19 vaccine, regardless of when they were infected and whether or not they had detectable antibodies against the disease prior to receiving the preventive, according to a study. Researchers from Bar-Ilan University and Ziv Medical Center in Israel […]

Zinc, vitamin C supplements does not decrease duration of COVID-19 symptoms: study

The study showed no significant difference between the usual care, vitamin C, zinc gluconate or the group receiving both vitamin C and zinc gluconate. Taking zinc or vitamin C supplements does not significantly decrease the severity or duration of symptoms in COVID-19 patients, when compared to standard care, according to a study. Researchers at Cleveland […]

India and Australia were evolutionary neighbours, a link found in Bhimbetka shows

The age of fossil rock is determined using isotopes. Bhimbetka, the famed Central Indian cave art repository near Bhopal dating to Palaeolithic and Mesolithic times, has yielded a fossil find dating back about 550 million years, the first time the particular fossilised organism has been recorded in India. It dates back to an era regarded […]

NASA’s first Mars sample collection rover to face ‘seven minutes of terror’ at landing

Washington: After a nearly seven-month journey to Mars, NASA’s Perseverance rover, its first mission to collect Martian broken rock and dust, is slated to land at a tricky terrain of the Red Planet on February 18. The rover will characterise the planet’s geology and past climate and pave the way for human exploration of the […]

How coronavirus survives longer on glass, plastic than on cloth, paper decoded

A study by researchers from the Indian Institute of Technology (IIT) Bombay has shown why the novel coronavirus may survive for far lesser time on porous surfaces such as paper and clothes than on impermeable surfaces like glass and plastic. COVID-19, caused by the SARS-CoV-2 virus, is transmitted through respiratory droplets. The virus-laden droplets also […]