endeavour - an attempt to do something, especially something new or difficult, frontier - the limit of something, especially the limit of what is known about a particular subject or activity, advancement - the process of helping something/somebody to make progress or succeed; the progress that is made, dominance - the fact of being more important, powerful or easy to notice than somebody/something else, Space Race - competition between the US and the Soviet Union in the 1950s and 60s to be the first to explore space, breakthroughs - important developments that may lead to an agreement or achievement, spinoff - an unexpected but useful result of an activity that is designed to produce something else, side-effect - an unexpected result of a situation or course of action that happens as well as the result you were aiming for, scarce - there is not enough of it and it is only available in small quantities, osteoporosis - ​a condition in which the bones become weak and are easily broken, usually when people get older or because they do not eat enough of certain substances, philosophical - connected with philosophy, unpredictable - that cannot be predicted because it changes a lot or depends on too many different things, questionable - that you have doubts about because you think it is not accurate or correct, pointless - ​having no purpose; not worth doing, primarily - mainly, cost-benefit - the relationship between the cost of doing something and the value of the benefit that results from it,

Is anyone out there? Vocabulary page 2

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