Speaking of Dust....
The Perseids are particularly spectacular
Astronomers have been taking advantage of clear, almost moonless skies to watch spectacular displays of shooting stars.
The Perseids are visible as streaks of coloured light in the night sky, and will be visible for several days, peaking in the early hours of Tuesday morning.
They can be seen during most of the hours of darkness.
"We've had quite a good night observing and we have seen some really bright and spectacular meteors," said Robin Scagell, of the Society for Popular Astronomy.
Conditions are particularly good this year, because the moon is new and giving little light, giving the Perseids free range to shine against the night sky.