Lombard astronaut Daniel Tani today called his deceased mother his “hero” and said he was aware of the possibility that a family tragedy could strike while he was in space. In a statement released by NASA, Tani thanked “everyone who has expressed their condolences during this time of grieving for me and my family.” Tani’s 90-year-old mother Rose was killed on Wednesday after she drove her car onto railroad tracks in Lombard and was struck by a freight train. He will not be able to return to Earth for weeks. “Living on the [International Space Station] means I experience all...