there are approximately 7,000 astronomers in the united states.
there are approximately 7,000 astronomers in the united states.
how many astronomers are there in the united states?
approximately 7,000
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plans called for hubble to be serviced in february 2005, but the "columbia" disaster in 2003, in which the orbiter disintegrated on re-entry into the atmosphere, had wide-ranging effects on the hubble program. nasa administrator sean o'keefe decided that all future shuttle missions had to be able to reach the safe haven of the international space station should in-flight problems develop. as no shuttles were capable of reaching both hst and the space station during the same mission, future crewed service missions were canceled. this decision was criticised by numerous astronomers who felt that hubble was valuable enough to merit the human risk. hst's planned successor, the james webb telescope (jwst), was not expected to launch until at least 2021. a gap in space-observing capabilities between a decommissioning of hubble and the commissioning of a successor was of major concern to many astronomers, given the significant scientific impact of hst. the consideration that jwst will not be located in low earth orbit, and therefore cannot be easily upgraded or repaired in the event of an early failure, only made concerns more acute. on the other hand, many astronomers felt strongly that the servicing of hubble should not take place if the expense were to come from the jwst budget.
hubble space telescope