UN climate talks finish with progress on technical issues but with questions on carbon cuts unresolved.
The US president's move comes a day after US hunters were told they could import elephant trophies.
Seagrass meadows are diminishing worldwide, which has serious implications for fishing activity.
The firm that can 3D print human body parts
Why the UAE plans to grow lettuce on Mars
The attitudes that kept women from doing research in Antarctica
The women who stitched components for Apollo spacesuits and Mars rovers
A brief history of Planet Earth's CO2
The waters where European orcas still gather
A different take on science and technology.
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