||the study of the origin, development, distribution, and future of life in the universe.
||refers to a class of chemical compound in living organisms that are based on carbon.
||any human made object placed in orbit around a body in space.
||vehicle propelled by the exhaust made from burning fuel.
||an un-crewed vehicle that travels to and obtains information about objects in space.
||where the force of gravity is so weak weightlessness occurs.
||harmful radiation from the sun.
||Astronomical unit, mean distance of the earth from the sun: approximately 93 million miles.
||International space station is an artificial satellite constructed, by astronauts from 15 different nations, that orbits the Earth where people live and work for up to 6 months at a time. It has been continuously occupied since the year 2000.