The second generation "can now speak for our family and speak for the nation," she said, adding that she's looking forward to these grown astronauts' children "sharing their stories, their beliefs and their leadership."
Challenger accident, 30 years later: New voice at astronauts' memorial →
"It's mostly history for the general public. It's very personal for us," she said.
Challenger, Columbia wreckage on public display for 1st time →