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More than 150 people reported seeing a greenish-blue flash in the skies over Southern California Thursday morning.

A new study finds evidence of "a gradual escalation of self-serving dishonesty," in which small lies pave the way for larger deceptions.

A new study finds evidence of "a gradual escalation of self-serving dishonesty," in which small lies pave the way for larger deceptions.

Online registration forms must be completed by midnight. Paper forms must be postmarked Monday or dropped off at the registrar's office by 8 p.m.

By expanding the genetic alphabet, San Diego researchers made one of the year's biggest breakthroughs, according to a leading journal.

Most California sea lions breed at the Channel Islands, which were contaminated with insecticide for decades. Condors that eat them lay thin-shelled eggs with a low chance of hatching successfully.

Ants in Fiji farm plants and fertilize them with their poop. And they've been doing this for 3 million years, much longer than humans, who began experimenting with farming about 12,000 years ago.

To keep its code-breaking prowess, the NSA must recruit scores of the brightest students in math and computer science each year. But the Snowden revelations are hurting those efforts.

Global warming has made conditions historically associated with great wines more frequent in Bordeaux and Burgundy, a study finds. But things look less bright for California vineyards.

California voters will not decide the Republican presidential primary, now that Ted Cruz and John Kasich have conceded to Donald Trump.