Out of Space

With regard to tracking military satellites newly-launched from eastern Asia and potentially of concern to our allies, New Zealand’s geographical position is of huge (yet overlooked) significance.   Surely no-one could imagine that space-wise there is not a lot going on at present, with another probe just landed on Mars, three other spacecraft missions having encounters with asteroids, and … Read More

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Looking out at the stars it would be easy to think that the solar system is mostly empty, bar the handful of planets circuiting the Sun and the occasional comet we see passing by. The reality, we now know, is that the edge of the solar system contains a vast population of substantial objects orbiting just beyond Neptune, one of … Read More

New Year is coming in a few hours (as I write), at least on the calendar used as the global standard. Not everyone counts years in quite the same way, though.     It takes most of us a week or two to get used to the number of the year having changed. In the days when we still wrote … Read More

The date of Christmas is a matter many find confusing, and yet the adopted anniversary is easy to understand if you follow through the history, astronomy and human biology that are involved.  Why is the Nativity commemorated on December 25th, when it is clear Jesus was not actually born on that date? And how can a year be termed “Before … Read More

There are bits of Mars on Earth already, samples of the Red Planet blasted off its surface by comet and asteroid impacts and delivered to us as meteorites. Read More

A few minutes after 8am this Saturday those further south in New Zealand will have a once-in-a-lifetime chance to witness a rare celestial event: a selenelion (or selenehelion). What is that? It’s when the eclipsed Moon can be seen on one horizon, whilst the rising Sun can also be observed near the opposite horizon. One might think … Read More