space travel1

In the era of rapid development of spaceflight, can space travel be realized?
What are the future of space travel? From early on, mankind has lots of inspiration, enlightenment and excitement to the stars. In the twentieth century, we took a major step forward in space exploration with the launch of the first artificial satellite in the 1950s, followed by the successful lunar landing of Apollo 11 in 1969 and the establish of the International Space Station in 1998. Today, given the growing concern about global warming and climate change, our vision is broader and more ambitious. It’s probably not hard to understand why NASA, Space X, Boeing and other companies are working on...