Similar Stories to Two Orbiters Begin Their Long Journey To Mercury Friday Night on Bing News

ESA One might think it's a relatively easy thing to reach Mercury, the innermost planet in the Solar System. At its closest approach, Mercury is just 77 million kilometers from Earth, or not all that much further than the closest that Earth comes to Mars. The Earth-Mars transit typically only takes about six months. However, the Sun's enormous gravity makes putting a spacecraft into orbit around Mercury quite difficult.

Topics:  esa   solar   system   earth-mars   read   comments   mercury   earth   mars   sun   gravity   closest   

 

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