<p class="title">For the first time in five decades, a NASA astronaut candidate has resigned from training, the US space agency has said.</p>.<p class="bodytext">Robb Kulin resigned from NASA effective August 31 for personal reasons, spokeswoman Brandi Dean said, declining to provide further details.</p>.<p class="bodytext">It's not an easy gig to get -- some 18,000 people routinely seek the 12 spots that open each year.</p>.<p class="bodytext">Kulin, who joined his class sounding upbeat, is the first would-be astronaut to leave training since a resignation in 1968.</p>
<p class="title">For the first time in five decades, a NASA astronaut candidate has resigned from training, the US space agency has said.</p>.<p class="bodytext">Robb Kulin resigned from NASA effective August 31 for personal reasons, spokeswoman Brandi Dean said, declining to provide further details.</p>.<p class="bodytext">It's not an easy gig to get -- some 18,000 people routinely seek the 12 spots that open each year.</p>.<p class="bodytext">Kulin, who joined his class sounding upbeat, is the first would-be astronaut to leave training since a resignation in 1968.</p>