New method to separate much-needed medical isotopes proposed

Individual atoms of a certain chemical element can be very stubborn when it comes to separation, mainly because techniques rely on a difference in chemical and physical properties — atoms are almost identical in both ...

T. Rex's killer smile revealed

One of the most prominent features of life-size, museum models of Tyrannosaurus rex, is its fearsome array of flesh-ripping, bone-crushing teeth.

NASA develops space weather app for Android smartphones

NASA's Goddard Space Flight Center in Greenbelt, Md. is pleased to announce that its Space Weather App, previously only available for iPhone users, is now available for users of Android smartphone and tablet users. The Space ...

Do parasites evolve to exploit gender differences in hosts?

Some disease-causing parasites are known to favor one sex over the other in their host species, and such differences between the sexes have generally been attributed to differences in immune responses or behavior. But in ...

US nuclear oversight too lax: science group

A study of safety lapses at nuclear power facilities in the United States found that owners of atomic plants too often either close an eye to problems or fail to adequately address them, a watchdog group said Tuesday.

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