From amazing firsts on Mars to the impacts of climate change on Earth, these science stories stood out as the most important of 2021 Photo illustration by Meilan Solly / Photos via Getty Images, ...

All year long, these moments captivated the public, demonstrated dangerous trends, and pushed research and innovation forward In 2025, researchers watched an interstellar comet, learned about human ...

And how many of them are needed to build a house of cards? Just one — if you're willing to decorate it with decimals and call it science. A global analysis claims plastics are responsible for 13.497% ...