fall

For convenience, the weather people kickstart autumn by inaugurating it on 1 September. But the first astronomical day of autumn fell this year on 23 September, the date of the autumn equinox. Either way, autumn is now well and truly here, as… Read More

There are just a handful of astronomical events that non-specialists like me know of, and one of them will be upon us very soon: the autumn equinox. On 22 September 2021, day and night will be equal in length across the whole world. How so?… Read More