News

  1. Earth

    In the past 15 years, climate change has transformed the Arctic

    Accumulating evidence and new tools have helped scientists better understand how the Arctic is changing, but the pace has been faster than expected.

    By Curtis Segarra
  2. Astronomy

    Enormous X-ray bubbles balloon from the center of the Milky Way

    Images from the the eROSITA telescope reveal X-ray–emitting blobs surrounding gamma-ray bubbles.

    By Emily Conover
  3. Archaeology

    Ancient people may have survived desert droughts by melting ice in lava tubes

    Bands of charcoal from fires lit long ago, found in an ice core from a New Mexico cave, correspond to five periods of drought over 800 years.

    By Rachel Fritts
  4. Health & Medicine

    Here’s what you need to know about the COVID-19 vaccines

    There are still important unknowns about how Pfizer’s vaccine and others will work once they get injected in people around the world.