The assumption is that life requires complex organic (i.e., carbon-based) molecules. Sugar, or other organic molecules, would be a first step. However, sugar is a fairly simple molecule; from sugar to life is still a huge step.
Discovery, Atlantis, and Endeavour.
Could be 'Discovery' or 'Endeavour' - both are space shuttles that have visited the International Space Station.
That we could land on the moon and come back. And life can last in space.
they were discovering space therefore discovery
HST is the Hubble Space Telescope and was launched inside of space shuttle "Discovery" in 1990.
the space shuttle (discovery) was the first manned space ship that was reuseable.
Space Shuttle discovery's last flight on February 24, 2011 was it's 39th flight into space.
Space Shuttle Enterprise is in New York, Space Shuttle Discovery is in Virginia, Space Shuttle Atlanti is in Florida, and Space Shuttle Endeavour is in California.
Discovery, Atlantis, and Endeavour are still operational. The Enterprise, designed for only earth flight, is in a museum.
because it could save the human race or provide more natural resources
No. Cows exist only on Earth, not in space.
It was not Discovery that exploded, it was Challenger.