Human exploration of space made many dramatic advances in the 20th century, including the first steps on the Moon in 1969. Human space exploration also helps to address fundamental questions about our place in the Universe and the history of our solar system. Through...
The distance between Earth and Mars is 52.225 million miles. The distance between Earth and Alpha Centauri is 4.367 light-years. The farthest known star, Icarus, is 5 billion light-years from Earth. It will take 9 billion years for our existing chemical rockets to...
“Across the sea of space, the stars are other suns.” – Carl Sagan”The reappearance of the crescent moon after the new moon; the return of the Sun after a total eclipse, the rising of the Sun in the morning after its troublesome absence at night...
“For the benefit of all” NASA, short for National Aeronautics and Space Administration, is the part of the United States government that deals with space exploration and aeronautics, the operating and designing of planes. With many successful missions...
