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.
New studies show how satellite images can predict the spread of human illness.
Katharine Gammon, Contributor
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