News
- Astronomy
Cosmic Survey: Galaxy map reveals dark business as usual
The most precise map of how galaxies cluster, pulled together by the tug of gravity, has confirmed that most of the cosmos is in the dark, consisting of 5 percent ordinary matter, 25 percent dark matter, and 70 percent dark energy.
- Earth
Flaming Out? Days may be numbered for two fire retardants
The maker of two controversial flame-retardant chemicals has voluntarily initiated negotiations with the federal government to end their production.
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- Earth
California acts on plastic additive
Korean engineers have developed a replacement for a plasticizer used in polyvinyl chloride that California has just ruled is a known reproductive toxicant.
