An oven was launched at the International Space Station (ISS) for astronauts to bake cookies with a chocolate chip.
A cargo ship containing a specially designed "space oven" and baking ingredients departed from the US state of Virginia on Saturday.
Astronauts are prepared to test the effect of high heat and zero gravity on the shape and consistency of cookies.
The experiment was called the first case of baking in space.
Hilton's DoubleTree hotel chain, which provides the dough, said the "remarkable microgravity experiment" aims to make long-term space travel "more welcoming."
The Cygnus capsule was also loaded with other unusual equipment, including sports car parts and a vest, to protect it from radiation.
The ISS astronauts will test the safety vest to gauge its comfort while Italian automaker Lamborghini sends samples of the carbon fiber used in its sports cars to study the effects of direct space exposure.
The capsule also contains the equipment needed to complete a series of space paths this month for fixing a key particle physics detector as well as a number of research equipment and crew supplies.
A shipment weighing about 8,200 pounds (3,700 kg) is expected to reach the ISS on Monday.
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