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Making gravity-free espresso in space really is rocket science

Specially designed ‘ISSpresso’ machine overcomes absence of gravity by firing pressurised water through capsule of coffee

The ISSpresso machine weighs about 20kg – the same as all the science instruments on the Philae comet lander put together. Photograph: Lavazza

Perhaps one of the last barriers to the human conquest of space has been removed; a space-rated espresso machine has now been delivered to the International Space Station (ISS).

The device was made by two Turin-based companies, Lavazza Coffee and engineering firm Argotec. It is called the ISSpresso and was delivered by Italian astronaut Samantha Cristoforetti in the early hours of Monday morning, when her Soyuz space capsule docked at the orbiting habitat.

Making coffee in space is difficult, especially espresso, which relies on 94°C water being passed through ground coffee under high pressure.

On Earth this is achieved with the help of gravity. The ground coffee is placed in a perforated container, the water is heated and shot on to the coffee to drip into the cup. In space there is no up and down, so things don’t naturally fall.

Source: TheGuardian Read more

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“Many wonders are visible when flying over the Earth at night. A compilation of such visual spectacles was captured recently from the International Space Station (ISS) and set to rousing music. Passing below are white clouds, orange city lights, lightning flashes in thunderstorms, and dark blue seas. On the horizon is the golden haze of Earth’s thin atmosphere, frequently decorated by dancing auroras as the video progresses. The green parts of auroras typically remain below the space station, but the station flies right through the red and purple auroral peaks. Solar panels of the ISS are seen around the frame edges. The ominous wave of approaching brightness at the end of each sequence is just the dawn of the sunlit half of Earth, a dawn that occurs every 90 minutes.”
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