New Delhi, July 23 (IANS) It was on April 19, 1975, that India strode into the 'space age' with the successful launch of 'Aryabhata', the first satellite, named in honour of the ancient mathemat
Reuters
Drugmakers and research centres around the world are working on COVID-19 vaccines, with large global trials of several of the candidates involving tens of thousands of participants well underway.