Joe Velaidum of Charlottetown on Prince Edward Island narrowly avoided a collision with an incoming meteorite at his home in July.

The trillion-ton slab of ice — called a megaberg — could slam into South Georgia Island, making it hard for penguin parents to feed their babies and some young could even starve.

New Hampshire teacher Christa McAuliffe and other astronauts were honored Thursday by NASA during its Day of Remembrance.