News
- Earth
Indonesian reefs fell prey to fires
The fires that swept through Indonesian rain forests late in 1997 apparently laid waste to some marine ecosystems, as well.
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Babies show eye for object lessons
Between 4 months and 6 months of age, babies learn that objects continue to exist even when they disappear behind barriers.
- Astronomy
Lights out
Astronomers who have conducted a detailed analysis of the colors of some 37,000 nearby galaxies conclude that the universe is gradually growing darker.
- Chemistry
Amino acid lends a heavy hand
Scientists have identified a mechanism to explain how amino acids evolved to become exclusively left-handed in all living organisms.
