applicant
a person who requests or seeks something such as assistance or employment or admission
astronaut
a person trained to travel in a spacecraft
chemical engineering
the branch of engineering that is concerned with the design and construction and operation of the plants and machinery used in industrial chemical processes
demanding
requiring more than usually expected or thought due; especially great patience and effort and skill
embassy
a diplomatic building where ambassadors live or work
meditation
continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
mission
an operation that is assigned by a higher headquarters
orbit
the (usually elliptical) path described by one celestial body in its revolution about another
reusable
capable of being used again
satellite
any celestial body orbiting around a planet or star
space shuttle
a reusable spacecraft with wings for a controlled descent through the Earth's atmosphere
specialist
an expert who is devoted to one occupation or branch of learning
trailblazer
someone who helps to open up a new line of research or technology or art
weightlessness
the property of being comparatively small in weight
