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Satellites

Scientists propose strategies to build a larger-than-ever space telescope by sending up the mirror piece by piece.

Charles Q. Choi, Contributor

Chinese scientists have built two major quantum infrastructure projects, and the race is on to take the next step.

Yuen Yiu, Staff Writer

Advances in GPS and remote detection of hidden military sites shift the strategic landscape.

Yuen Yiu, Staff Writer

New studies show how satellite images can predict the spread of human illness.

Katharine Gammon, Contributor

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