"It may be useful to talk about location, timing and intensity of infection instead of waves and their number...If we take strong measures, the third wave may not happen in all the places or indeed anywhere at all. It depends much on how effectively the guidance is implemented at the local level, in states, in districts and cities."
NASA’s Ingenuity, the $85 million Mars Helicopter, took off from the surface of Mars on 19 April, 2021 at 3:34 am EDT, making it the first flight of a powered, controlled aircraft on another planet. The flight, lasting for about 40 seconds, was the first of five planned with the aim of demonstrating its flight technology.
On March 29, Visa Inc. announced that it will now facilitate payments in cryptocurrency, becoming the first major card network in the world to do so. USDC, the cryptocurrency it will use, is a 'stablecoin'. That is, each USDC is backed by $1 held in the country's reserve, making it significantly more stable than other cryptos.