News

  1. Planetary Science

    Uranus has weird rings. Astronomers now know the source of two of them

    The Nu ring seems to be fed by unknown rocky bodies, whereas the Mu ring appears rich in water ice and linked to the moon Mab.

    By Robin George Andrews
  2. Health & Medicine

    This dangerous pregnancy complication is common. A new treatment might help

    Preeclampsia complicates 3 to 8 percent of pregnancies. In a recent trial, a blood filter lowered blood pressure and helped prolong some pregnancies.

    By Tina Hesman Saey
  3. Astronomy

    The earliest evidence of the first stars may lie in a distant gas clump

    James Webb data reveal pristine gas irradiated by energetic light some 450 million years after the Big Bang — a sign it may house primordial stars.