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How fast will the Phoenix spacecraft travel towards Mars?

April 26, 2017fast mars Phoenix spacecraft Travel

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How fast will the Phoenix spacecraft travel towards Mars?

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The Phoenix spacecraft is traveling at approximately 74,000 mph (120,000 km/h). Another number seen in the media is 14,000 mph (22,500 km/h). The 14,000 mph is the speed Phoenix will be traveling with respect to Mars. As Phoenix approaches Mars next May, Mars will be traveling at about 60,000 mph (96,600 km/h) in its orbit. The resulting difference between the speed of Phoenix and the speed of Mars will be around 14,000 mph (22,500 km/h).