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In an astronomical breakthrough, scientists are discovering planet after planet circling distant stars as the search narrows for a world like our own.
Petit, Charles W.
More than a year after their predicted demise, NASA 's Mars rovers Spirit and Opportunity keep going and going...
Sireteanu, Eva
Cu fotografia fizicianului şi cu reproducerea semnăturii lui
Cozmuţa, Augustin
Pârja, Gheorghe
Cray, Dan