|Condition:|| : |
An item that has been used or previously. See the seller’s listing for full details and description of any imperfections.See all condition definitions- opens in a new window or tab
|Seller Notes:||“ as shown in photos. Slight scratches and scuffs. Excellent Condition.”|
|Fastening:||Lace Up||Material:||Patent Leather|
|Model:||1460W||Width:||Medium (B, M)|
|Heel Height:||Flat (0 to 1/2 in.)||Brand:||Dr. Martens|
|US Shoe Size (Women's):||US 8/UK 6/EU 38.5|
After years of planning and preparation, mission teams are getting ready to wave goodbye to BepiColombo – ESA’s joint mission with the Japan Aerospace Exploration Agency (JAXA), that is destined for a long and complex journey before it reaches the innermost planet of the Solar System, Mercury, in 2025.
Mercury is a world of extremes and uniqueness. For starters, the planet has the smallest axial tilt of any other planet in the Solar System – just 0.01 degrees. Earth for comparison has an axial tilt of 23 degrees, while Venus’s tilt is a whopping 117 degrees, meaning its north pole is effectively pointing 'down.’
This tiny tilt also ensures that Mercury has permanently shadowed regions at its poles that never see the light of day. This allows ice to exist on its surface and it is the reason that this small and very dense planet has no seasons like Earth.
The tilt, or lack of it, also gives Mercury another curious consequence; on Mercury’s equator, there are two regions that are 180 degrees apart, which always have the Sun directly overhead when the planet is closest to the Sun. If you could stand at these points, then the Sun would appear to be almost stationary overhead for two to three weeks. This phenomenon is due to the planet’s orbital velocity (the speed that is travels around the Sun) being equal to that of its rotational velocity (the time that it takes to complete one revolution around its axis of rotation) for that period.
And if that wasn’t enough then Mercury is also unique in that it rotates three times about its spin axis for every two orbits around the Sun. This means that any given point on Mercury experiences one solar day every two years.
And all of this without mentioning the obvious dilemma of being so close to the Sun; scorching hot surface temperatures that can reach as high as +430 degrees celsius (806 Fahrenheit).