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Coming along in a numberless diversity of colours and patterns, many types secrete evil-tasting, or poisonous chemicals when threatened, so aquarium owners should not include them in displays., if they want their prized fish to stay healthy.

5

These astonishing visual displays appear to be fiery rainbows, yet are very icy indeed – and not rainbows in the traditional sense at all.

2

For me though, the majesty of these images lies in the vast gulf in size between the earth-size planet and the ferociously burning star that gives us life. Makes you humble to realize just how small and powerless we truly are.

3

Such eclipses occur when the Moon is at its farthest point away from the Earth, and therefore not large enough to block out the Sun completely as it passes across the face.

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This one, however was a beauty, and when it finally blew apart in mid-air the energy released would have equated to a five kiloton nuclear explosion – about 35% of the power of the Hiroshima bomb – so the effect must have been spectacular, at the very least.

3

Lakes in Kenya annually play host to gatherings of one of the largest flamingo populations on earth, the skies turning pink as literally millions of lesser flamingos fly in to breed.

5

If you have seen the northern lights, you know what a spectacular show they provide, but this year, because of recent hectic solar flare activity, these fantastic lights being seen unusually far south in North America.

6

Last week our nearest star put on the most spectacular of shows, under the ever-watching eyes of solar observers, the sun erupted in an awesomely powerful M2-class solar flare, only classed as a medium explosion.

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This is a spectacle that not only blows your mind but costs absolutely nothing.