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The Solar System's grandest canyon

Earth's Grand Canyon inspires awe for anyone who casts eyes upon the vast river-cut valley, but it would seem nothing more than a scratch next to the cavernous scar of Valles Marineris that marks the face of Mars.

The negative effects of Internet use

Among the most popular questions addressed in online communication research is the extent to which Internet use leads to undesirable psychosocial outcomes such as depression and loneliness. Evidence suggests that certain ...

Mars rover Opportunity working at 'Matijevic Hill' site

(Phys.org)—NASA's Mars rover Opportunity, well into its ninth year on Mars, will work for the next several weeks or months at a site with some of the mission's most intriguing geological features.

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