Scientists infer rainfall patterns in Australia over the past 200 years from tree rings.
Researchers investigated the nutrient content and microbial safety of lettuce grown on the International Space Station.
Scientists wanted to find out whether dinosaurs could have lived year round and nested in the Arctic.
Archaeologists wanted to find out who a person buried in an early medieval grave with jewelry and swords really was.
Scientists investigated the impact of single-food substitutions on carbon emissions and water use.