As a fan of the Phoenix Mars Lander, I recently paid close attention to the news about it since it successfully landed around the north pole of the Mars. So far the good news from Mars to human beings are the finding of ice water, friendly soil environment for some plants, and other things.

The course of development in space technology is a great history. From Newton’s invention of infinitesimal calculus in mathematics in 1665 to his three laws of motion; from the first manned aeroplane by Wright Brothers in 1903, the theoretic foundation of which is the lift equation which basically says the lift force is directly proportional to the square of velocity of object and the area of its wings, , and had appeared in Newton’s “The Mathematical Principles of Natural Philosophy”, to rockets launching and sending satellites to space; from the first manned landing on the moon in 1969 to the Phoenix Mars Lander nowadays, and so on, what great strides human have made.