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NASA's Perseverance rover produces first oxygen from Martian air
Scientists use human hair to improve solar technology, here's how
Unlocking the mysterious pollen-filled storm that sent thousands to the ER
Radioactive isotopes from Cold War era found in present-day American honey
Canada announces new target to cut emissions by at least 40% by 2030
New study finds T. rex wasn't nearly as fast as depicted in movies
About the first Earth Day — still the largest single-day protest in history
Spring's hidden dangers: Here's how to keep your pet safe
Canada's pandemic relief budget includes $17.6 billion to fight climate change
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