Joyce E Weaver

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NASA craft discovers heart shape on Pluto as flyby nears

The dwarf planet is also dotted with bright points which may be ice caps, and a mysterious dark shape nicknamed "The Whale."<p>"We're at the 'man in the moon' stage of viewing Pluto," said John Spencer of the Southwest Research Institute in Boulder, Colorado.<p>"It's easy to imagine you're seeing …

Delta Air Lines grounds travel websites

Some leading travel websites are a no-fly zone as far as Delta is concerned.<p>Delta is shutting out sites like TripAdvisor from accessing its information on fares and scheduling, making it difficult for travelers to compare prices and get the best deals, according to a study released Wednesday.<p>The …

Canadian, World, Politics and Business News & Analysis

Scientists Figure Out Why Your Knuckles Crack

Short answer: gas bubbles<p>Whether it’s a nervous habit or done just by accident, most people crack their knuckles every once in a while. But the reason why joints crack at all (and the long-term effects of cracking) has been the subject of much debate in the scientific community. With the help of a …

Carbon Dioxide