How the Perseids happen every August even though their comet returns in 2126
Dubai: The Perseids come from a comet called 109P/Swift-Tuttle. That comet passes through the inner solar system once every 133 years. It last did so in 1992, and it will not be back until 2126. Which raises an obvious problem. If the comet only turns up twice in three centuries, why does the meteor shower turn up every August without fail? The answer is that the comet has nothing to do with it.…
We haven't written up this one. Gulf News has the full story — the link below goes straight to it.
