The smallest
spacecraft has been launched. . .
The smallest spacecraft ever launched are successfully travelling in low
Earth orbit and communicating with systems on Earth, scientists have announced.
Known as ‘Sprites’, the miniature satellites are just 3.5cm x 3.5cm and carry
radios, sensors and computers, with each device powered by sunlight and
weighing just four grams.
Breakthrough Starshot’s goal is to develop chips with a weight of
roughly one gram and fit them to a lightweight sail before propelling them
through space with a 100-billion watt laser.
Purpose is to test the performance of the Sprites’ electronics when in orbit.
It will also demonstrates their novel radio communication architecture. It will
also explore the concept of solar sail propulsion in which spacecraft can be
powered using only the sun’s radiation. These tiny satellites also mark the
next step in the field of spacecraft miniaturization that can contribute to the
development of centimetre and gram-scale StarChips envisioned under the
Breakthrough Starshot project.
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