29 Mar '15, 3pm

#OnThisDay in 1974, #NASA's Mariner 10 became the 1st spaceprobe to fly by Mercury, making discoveries along the way.

NASA's Mariner 10 became the first spaceprobe to fly by Mercury on March 29, 1974. Mariner 10 was launched on November 3, 1973, approximately two years after Mariner 9 and was the last spacecraft in the Mariner program. Its primary mission objectives were to measure Mercury's environment, atmosphere, surface, and body characteristics and to make similar investigations of Venus. Secondary objectives were to perform experiments in the interplanetary medium and to obtain experience with a dual-planet gravity assist mission. To make it to Mercury, Mariner 10 used an interplanetary gravitational slingshot maneuver, using Venus to bend its flight path and bring its perihelion down to the level of Mercury's orbit. Doing so put the spacecraft into an orbit that repeatedly brought it back to Mercury. During its flyby of Venus, Mariner 10 discovered evidence of rotating clouds and a...

Full article: http://www.edn.com/electronics-blogs/edn-moments/4410883/...

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Hackaday Links: March 29, 2015

hackaday.com 29 Mar '15, 11pm

Every once in a while, the Hackaday Overlords have a Hardware Developers Didactic Galactic in San Francisco. Last week was...