Showing posts with label venus. Show all posts
Showing posts with label venus. Show all posts

Wednesday, May 02, 2012

Once in a Lifetime Venus Event

Coming this June is an astronomical event that will not take place again in your lifetime, or to put it more accurately, not again until 2117.

June 5 & 6 of 2012 will transit the sun. This pass will take about six hours to complete. The last transit was 2004. The reason for the two relatively short periods separated by a much longer periods (the transits have two rather quick transits, only separated by eight years - hence the 2004 to 2012 time frame then a 105 year wait.) of 105 to 121 years - happens only when Earth and Venus are in line with the sun. This doesn't happen often because of the different orbital times and the fact that neither Earths or Venus' orbit are flat.

The Science Daily article is rich with historical data, which if you have even a passing interest, I suggest that you check this Science Daily article out.  It really is worth it!

Tuesday, May 08, 2007

Venus's double vortex evolving

Just after it began orbiting the planet in April 2006, Venus Express spotted something resembling a double-eyed hurricane in the clouds over the planet's south pole. The mysterious double vortex in the clouds above Venus's south pole is thought to be a product of the super-strong winds that tear westward around the planet. But scientists do not understand why the winds produce a double vortex rather than a single one. The newly released images show the double vortex over the south pole is even more complex than first thought. Its structure varies with height, with the double vortex more prominent and intricate at lower altitudes.

Submitted by Shaun A. Saunders