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  1. Science & Society

    How some of 2021’s major science stories evolved over time

    Tulsa massacre analysis and a genetically modified mosquito release are two important updates to 2021 stories.

    By Science News Staff
  2. Space

    Spacecraft in 2021 set their sights on Mars, asteroids and beyond

    This year, a bevy of new missions got under way on Mars and spacecraft prepared to visit asteroids.

    By Lisa Grossman
  3. Climate

    How electric vehicles offered hope as climate challenges grew

    Amid daunting climate change challenges, electric vehicles swerved into the spotlight this year.

    By Carolyn Gramling
  4. Space

    These discoveries from 2021, if true, could shake up science

    Discoveries in 2021, from hidden subatomic particles to the oldest animal fossils, could shake up science.