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Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. They find that the former Mangarevans combined base-10 ...

The natives of a remote Polynesian Island invented a binary number system, similar to the one used by computers to calculate, centuries before Western mathematicians did, new research suggests. The ...

Astronomers have puzzled over the oddities of the X-ray binary system M33 X-7, but no one could explain all of its features. Now researchers have. They have produced a model of the system's ...

M33 X-7 contains a massive black hole orbiting a large star in a surprisingly close orbit. The star is dimmer than expected due to its rapid mass gain and viewing angle. A new model explains the ...