extra-terrestrial

Rover Shoots Twirling Dust Devil On Mars

By R. Siva Kumar - Apr 06, 2016 06:54 AM EDT

NASA's Opportunity rover captured an image of a distant dust devil on Mars, the first one it has seen in its 12-year stay.

Laser Cloaking Can Hide Earth From Aliens: Study

By R. Siva Kumar - Apr 01, 2016 07:35 AM EDT

It is possible to block off the visibility of the earth from alien civilisations, according to a new study.

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