News
- Astronomy
Eclipsing a black hole
A chance eclipse has enabled astronomers for the first time to measure the width of a disk of swirling, hot matter around a supermassive black hole.
- Earth
Increase in chemical disposals
Industrial facilities in the United States released more than 4 billion pounds of chemicals into the environment in 2005, according to the Environmental Protection Agency's Toxics Release Inventory.
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Psychotherapy aids bipolar treatment
Any of three forms of psychotherapy enhances emotional stability in people with bipolar disorder who already receive standard medications for that severe psychiatric ailment.
- Anthropology
Disinherited Ancestor: Lucy’s kind may occupy evolutionary side branch
A controversial analysis of a recently discovered jaw from a 3-million-year-old Australopithecus afarensis puts Lucy's species on an evolutionary side branch that eventually died out.
