Uncategorized

  1. 19673

    This article refers repeatedly to black holes “swallowing matter and spitting out [or sending out] energy.” What really “spits out” or “sends out” anything is not the black hole itself, but the disk of gas that’s in the process of being mostly sucked irreversibly into the black hole. Bruce MoomawCameron Park, Calif.

    By Science News
  2. Earth

    Brain Delay: Air pollutants linked to slow childhood mental development

    Pollutants spewing from vehicles and power plants may be harmful to fetal brains.

    By Ben Harder

  3. Nixing Malaria: DNA segment provides parasite resistance

    A section of the mosquito genome appears to give the insects a natural resistance to malaria.

    By Christen Brownlee
  4. Earth

    Seismic Speed Traps: Iron-rich regions may slow deep-Earth vibes

    Large quantities of iron-rich minerals may be responsible for the sluggishness of seismic waves traveling through certain regions deep within Earth.