In addition to the above disturbing facts, of the 20 407 taxpayers that did claim (there is no specific statistics regarding autism), the total amount of medical expense tax deductions claimed for the 2008 tax year was only R905 million.
When Earth and Mars are furthest apart. On the opposite end of the scale, Mars and Earth can be 401 million km apart (249 million miles) when they are in opposition and both are at aphelion. The average distance between the two is 225 million km. When Mars is Close, Youâre Go For Launch. Mars and Earth reach this closest point to one another approximately every two years. And this is the perfect time to launch a mission to the Red Planet.
On average, the distance to Mars from Earth is 140 million miles (225 million km). In their race around the sun, Earth on its inside track laps Mars every 26 months. This close approach provides an opportunity â a launch window â to send spacecraft to the red planet.