News

  1. Planetary Science

    Rosetta data reveal an invisible ultraviolet aurora around comet 67P

    Solar wind electrons smash water molecules in the comet’s coma to make the 67P/Churyumov-Gerasimenko’s version of the northern lights.

    By Maria Temming
  2. Animals

    A tiny crustacean fossil contains roughly 100-million-year-old giant sperm

    Giant sperm preserved in an ancient ostracod may be the oldest known sperm fossil, showing that giant sperm have existed at least 100 million years.

    By Curtis Segarra
  3. Health & Medicine

    What will happen when COVID-19 and the flu collide this fall?

    As the Northern Hemisphere braces for a coronavirus-flu double hit, it’s unclear if it’ll be a deadly combo or one virus will squeeze out the other.