Chocolate chip cookies have become the first food to be baked in space in a first-of-its-kind experiment.

Astronauts baked the cookies in a special zero-gravity oven at the International Space Station last month.

The cookies sealed in individual baking pouches, and three of the cookies have been returned to Earth on the SpaceX Dragon spacecraft.

The aim of the experiment was to study cooking options for long-haul trips.

NNR/Abid