Chris Hadfield

A 21-foot tall model of the Transformers character Optimus Prime is displayed on the red carpet before the world premiere of the film "Transformers: Age of Extinction" in Hong Kong.

Some sci-fi writers want fewer killer robots and more vision for the future

Does sci-fi always have to depict a dark, gloomy future for humanity? Two prominent sci-fi writers are prodding their colleagues to paint a more positive vision of the future in their works.

Some sci-fi writers want fewer killer robots and more vision for the future
Chris Hadfield playing in space.

Astronaut Chris Hadfield shows childhood dreams can come true

Astronaut Chris Hadfield shows childhood dreams can come true

Ground Control to Commander Chris Hadfield

Ground Control to Commander Chris Hadfield