Space probe comet 67P/Churyumov-Gerasimenko in November 2014. First probe to Jupiter. Radio communications were lost with Pioneer 10 on January 23, 2003, because of the loss of electric power for its radio transmitter, with the probe at a distance of 12 billion kilometers (80 AU) from Earth. First probe to fly by Saturn. (Communications were later lost due to power constraints and vast distance.) "Voyager 1" is a 733-kilogram probe launched September 5, 1977. It visited Jupiter and Saturn and was the first probe to provide detailed images of the moons of these planets. "Voyager 1" is the farthest human-made object from
Mission: Earth, Voyage to the Home Planet book might be used more successfully to supplement the curriculum in those areas than in units on space flight per se". Weischedel said the book "provides a unique look at a new method of research and an opportunity for youngsters to read one scientist's account of what it's like to engage in this exciting field of endeavor". "Horn Book Review" called the book "a uniquely personal account", and said it "features a crowded design, but the many color photographs throughout the text are fascinating". "Mission: Earth, Voyage to the Home Planet" is listed in the book "Teaching U.S. history through