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NASA scientists report the MarCO satellites, two CubeSats in deep space, have lost contact with Planet Earth.

When NASA's InSight lander was on its seven-month trip to Mars, it wasn't alone. Two suitcase-size spacecraft, called MarCO, followed InSight on its journey. They were the first cube satellites to fly into deep space. And now, they've fallen silent.

  1. CNN
MarCO satellites go dark after helping with Mars landing