Uncategorized

  1. Earth

    Freshwater first appeared on Earth 4 billion years ago, ancient crystals hint

    Oxygen ratios in ancient zircon crystals suggest that the planet’s water cycle got started hundreds of millions of years earlier than thought.

    By
  2. Genetics

    50 years ago, chimeras gave a glimpse of gene editing’s future

    Advances in gene editing technology have led to the first successful transplant of a pig kidney into a human.

    By
  3. Science and the challenges of evidence-based forensics

    By
  4. Readers discuss accessible images in print and potassium’s climate potential

    By
  5. Health & Medicine

    Bird flu can infect cats.