Reuters | , Rotterdam
PUBLISHED ON MAR 05, 2021 12:45 PM IST
Dutch designer Daan Roosegaarde's "Urban Sun" installation seeks to harness ultraviolet light to reduce the amount of coronavirus in the air in busy spaces and lessen the risk of transmission.
Mumbai | By Snehal Fernandes
UPDATED ON MAY 07, 2019 12:43 PM IST
Previous studies had suggested that reionisation occurred much earlier, within one billion years of the Big Bang, the accepted theoretical birth of our universe 13.8 billion years ago.