Rare Phenomenon: As Venus, Mars and Jupiter all cross paths at the same time

Wow 2015 is a year with many rare astronomical phenomenon! We've seen the blue moon, the blood moon 'Super moon' and a rare eclipse....And now its Venus, Jupiter and Mars that cross paths in planetary trio spectacle.

From today until Thursday Venus, Jupiter and Mars all pursuing their orbits around the sun, will be visible and the rare phenomenon will not happen until 2012.

The rare phenomenon is best viewed an hour before sunrise (5am) via naked eyes or binoculars.

Venus takes only a fraction of one Earth year - 225 days - to orbit the sun once.

Jupiter takes about 12 Earth years - 4,330 days - to go round the sun, while Mars takes 686 days.

Venus and Jupiter are the brightest planets in the night sky as seen from Earth.

Mars is some 250 times fainter than Venus, the sky's brightest planet, and some 25 times fainter than Jupiter, the sky's second-brightest planet. 

It may even be possible to see a fourth planet - Mercury - over the horizon as darkness gives way to dawn.