It is the last chance of your life to catch one of the rarest cosmic spectacles - Venus slowly crossing the face of the sun.
But in true British fashion, the weather is likely to put a dampener on the transit of Venus when it becomes visible from the UK in the early hours of this morning.
While the rain may hold off in places, the Met Office predicts more cloud cover across much of the country, although some may be lucky enough to catch a sunny spell.
Venus will appear as a black dot as it slides past the Sun - at 5.37am in London - and this sight will not come again until 105 years from now in 2117.
The nearly 7-hour show can be seen in its entirety from the western Pacific, eastern Asia and eastern Australia. Other parts of the globe will catch portions of the transit.
As in a solar eclipse, do not look directly at the sun. There are ways to watch the Venus transit without blinding yourself.
If you still have your pair of eclipse glasses from the May 20 'ring of fire' solar eclipse, now is a good time to reuse it.
You can also find the special viewing glasses at your local museum - if they're not already sold out. Another option is to buy welder's glasses from a home improvement store, but make sure it's number 14 or darker.
Read more: http://www.dailymail.co.uk/sciencetech/article-2154835/Venus-transit-2012-Last-lifetime-event-cross-Sun-5-37am-London.html#ixzz1wxYBv1jR
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