Many people in Australia and elsewhere have been gazing at the sky tonight, trying to catch a glimpse of the second total lunar eclipse occurring in the current lunar tetrad – a not-so-common succession of four total lunar eclipses.
If the clock were invented on the Southern Hemisphere, we’d all be twisting our bottle caps shut anticlockwise.
We, the inhabitants of Earth, are living in rather cushy weather conditions. But elsewhere in the solar system storms are ravaging the gas giants.
As a species living on a rock that spins on its axis and orbits a massive furnace, we are given a particular set of attributes to work with in measuring time. One of these attributes is the year, which in its simplest definition might be described as one Earth’s rotation around the Sun. But is that so simple?