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Twitter data takes snapshots of mood of New York City
On the whole, tweets are most positive near public parks like Central Park. They're most negative near transportation hubs such as the Brooklyn Bridge and the airports.
August 21, 2013
Tiny fish widens false eye on fins to distract predators
A science team in Australia has the first clear evidence that damsel fish can change the size of both a false eye and their real eye to maximize chances of survival.
August 20, 2013
Look for bright nova in constellation Delphinus
It's the brightest nova since 2007, and may remain visible to the unaided eye for weeks to come.
August 20, 2013
On this planet, a new year every 8.5 hours
Researchers have discovered an Earth-sized exoplanet that whips around its host star in a mere 8.5 hours — one of the shortest orbital periods ever detected.
August 19, 2013
Female frogs prefer males who can multitask
The study supports the multitasking hypothesis, which suggests that females prefer males who can do two or more hard-to-do things at the same time because these are especially good quality males.
August 19, 2013
View from space: China heat wave
Two satellite views of China's record-breaking heat.
August 16, 2013
In Russia, giant owls need giant trees
Tigers and bears live in the last great primary forests of Russia’s Far East. So do giant owls.
August 16, 2013
Researchers debunk myth of right-brain and left-brain personality traits
Are “right-brained” people creative, thoughtful and subjective? Are “left-brained” people logical, detail-oriented and analytical? Research suggests it's not so.
August 15, 2013
Voyager 1 has left the solar system
Voyager 1 appears to have at long last left our solar system and entered interstellar space, says a University of Maryland-led team of researchers.
August 15, 2013
First video of apes that can swim
Zoos often use water moats to confine chimpanzees, gorillas or orangutans. But now researchers have used video to show that apes can and do swim.
August 15, 2013
