These chip-sized spacecraft are the smallest space probes yet
Prototypes ride on satellites in low Earth orbit to test how their circuitry fares in space
![diagram of Sprite](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/08/073117_MT_tiniest_satellite_main.jpg?fit=860%2C460&ssl=1)
THE ITSY-BITSY SPACECRAFT Prototypes of tiny spacecraft called Sprites are being tested in low Earth orbit. Similarly tiny probes may someday fly to Alpha Centauri.
Zac Manchester