
In 1875, 17 Countries Signed the Metre Convention
A quick guide to the meter—the standard unit of length—with 4 examples of where the meter is part of day-to-day life in the USA (instead of inches, yards, and miles).
A quick guide to the meter—the standard unit of length—with 4 examples of where the meter is part of day-to-day life in the USA (instead of inches, yards, and miles).
Three solar system bodies will line up in the sky and be visible to the naked eye—if we can get ourselves up early enough.
In May, the Moon aligns with Venus and Saturn. Read more about May’s Moon events and what makes this month’s Full Moon special.
The Queen's birthday, also known as the Queen's Official Birthday, is celebrated in many Commonwealth countries around the world. It is a public holiday in countries such as Australia, New Zealand, and Gibraltar, although on different dates.