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.
The average distance is approximately 225 million km ( or 1.50403 AU). The Earth has a shorter orbital period than Mars, it passes in between Mars and the Sun approximately every 780 days, or 2 years and 50 days. At that time , Mars is seen in the opposite direction from the Sun, at opposition. The time interval between Marsâ opposition and its least distance to Earth can be as large as 8 and a half days. In 2001, for example, opposition took place on June 13 but least distance was on June 21. Each opposition is followed by a very similar one 79 years later.