A very hot star with a short lifetime. Blue stars exist for ...
An ultra-hard carbon crystal created artificially by ...
Force is a push or pull which tends to change the state of ...
Electricity generated by hydro-power. The power through the ...
Logos (UK /ˈloʊɡɒs/, /ˈlɒɡɒs/, or US /ˈloʊɡoʊs/; Greek: ...
Tiangong-1 is China's first space laboratory, due to launch ...
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