Sign up for Space Weather Alerts and receive a text message when auroras appear. ... Atmospheric radiation shot up in 2015-2019 because then-Solar Cycle 24 was decaying. ... On July 15, 2021 there were 2200 potentially hazardous asteroids. ... According to a study from the Harvard T.H. Chan school of public health, .... In truth the present aggregate is the largest for September in any year as far back as our ... The Bank of England minimum rate of discount remains unchanged at 24 per cent.