News
- Paleontology
New View: Method looks inside embryo fossils
Using an X-ray–scanning technique, scientists have taken a high-resolution peek inside fossilized embryos of some early multicellular organisms.
- Earth
Macho Moms: Perchlorate pollutant masculinizes fish
Perchlorate, a compound best known as a component of rocket fuel, can disrupt sexual development in fish.
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Bad Vibrations? Ultrasound disturbs mouse brains
Prolonged and frequent use of fetal ultrasound might lead to abnormal fetal brain development, a study in mice suggests.
- Tech
Glare gives silicon goose bumps
New experiments show that fluorescent lights cause undesirable bumpiness on the surface of silicon, identifying what may be a previously unrecognized cause of flaws in microchips that could become increasingly important.
